diff --git "a/20211029_101219/answers-students.wa" "b/20211029_101219/answers-students.wa" new file mode 100644--- /dev/null +++ "b/20211029_101219/answers-students.wa" @@ -0,0 +1,12015 @@ + +// both bulbs a and c still have a closed path +// Bulbs A and C are still in closed paths + +1 both : +2 bulbs : +3 a : +4 and : +5 c : +6 still : +7 have : +8 a : +9 closed : +10 path : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : + + +2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 <==> 5 // EQUI // 5 // +8 9 10 <==> 7 8 9 // EQUI // 5 // + + + + + +// terminal 1 and the positive terminal are connected. +// Terminal 1 and the positive terminal are separated by the gap + +1 terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 3 4 5 6 <==> 1 2 3 4 5 6 // EQUI // 5 // +7 8 <==> 9 10 11 // EQUI // 5 // + + + + + +// positive battery is seperated by a gap from terminal 2 +// Terminal 2 and the positive terminal are separated by the gap + +1 positive : +2 battery : +3 is : +4 seperated : +5 by : +6 a : +7 gap : +8 from : +9 terminal : +10 2 : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +5 6 7 <==> 9 10 11 // EQUI // 5 // +8 9 10 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// There is no difference between the two terminals. +// The terminals are in the same state. + +1 There : +2 is : +3 no : +4 difference : +5 between : +6 the : +7 two : +8 terminals. : + + +1 The : +2 terminals : +3 are : +4 in : +5 the : +6 same : +7 state. : + + +2 <==> 3 // EQUI // 5 // +5 6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// the switch has to be contained in the same path as the bulb and the battery +// The switch and the bulb have to be in the same path + +1 the : +2 switch : +3 has : +4 to : +5 be : +6 contained : +7 in : +8 the : +9 same : +10 path : +11 as : +12 the : +13 bulb : +14 and : +15 the : +16 battery : + + +1 The : +2 switch : +3 and : +4 the : +5 bulb : +6 have : +7 to : +8 be : +9 in : +10 the : +11 same : +12 path : + + +1 2 <==> 1 2 3 4 5 // EQUI // 5 // +7 8 9 10 <==> 9 10 11 12 // EQUI // 5 // +11 <==> 6 7 8 // EQUI // 5 // + + + + + +// there is a gap in terminal 1 +// Terminals 1 and 2 are in the same electrical state + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 terminal : +7 1 : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 in : +7 the : +8 same : +9 electrical : +10 state : + + +5 6 7 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// The battery uses the chemical reation to create voltage +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 The : +2 battery : +3 uses : +4 the : +5 chemical : +6 reation : +7 to : +8 create : +9 voltage : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 <==> 4 5 6 // EQUI // 5 // +7 8 <==> 7 8 // EQUI // 5 // +9 <==> 9 10 11 // EQUI // 5 // + + + + + +// a batter uses a chemical reaction to create voltage +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 a : +2 batter : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 create : +9 voltage : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +4 5 6 <==> 4 5 6 // EQUI // 5 // +9 <==> 9 10 11 // EQUI // 5 // + + + + + +// the battery alone is in a closed path +// The battery is contained in a path which does not contain any other components + +1 the : +2 battery : +3 alone : +4 is : +5 in : +6 a : +7 closed : +8 path : + + +1 The : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 path : +8 which : +9 does : +10 not : +11 contain : +12 any : +13 other : +14 components : + + +1 2 <==> 1 2 // EQUI // 5 // +4 <==> 3 4 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 // EQUI // 5 // + + + + + +// Because there is a gap in the circuit. +// there is a gap in the circuit + +1 Because : +2 there : +3 is : +4 a : +5 gap : +6 in : +7 the : +8 circuit. : + + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 the : +7 circuit : + + +2 <==> 1 // EQUI // 5 // +4 5 <==> 3 4 // EQUI // 5 // +6 7 8 <==> 5 6 7 // EQUI // 5 // + + + + + +// Bulbs A and B are not within the same path as bulb C. +// Bulb C is in a separate path + +1 Bulbs : +2 A : +3 and : +4 B : +5 are : +6 not : +7 within : +8 the : +9 same : +10 path : +11 as : +12 bulb : +13 C. : + + +1 Bulb : +2 C : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +5 6 <==> 3 // EQUI // 5 // +11 <==> 4 5 6 7 // EQUI // 5 // +12 13 <==> 1 2 // EQUI // 5 // + + + + + +// because there was two negative connections +// Terminals 1 and 2 are connected + +1 because : +2 there : +3 was : +4 two : +5 negative : +6 connections : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 connected : + + +2 <==> 5 6 // EQUI // 5 // +4 5 6 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// bulb a is on a closed path with the battery +// there is a path containing A and a different path containing B and C + +1 bulb : +2 a : +3 is : +4 on : +5 a : +6 closed : +7 path : +8 with : +9 the : +10 battery : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A : +7 and : +8 a : +9 different : +10 path : +11 containing : +12 B : +13 and : +14 C : + + +1 2 <==> 6 // EQUI // 5 // +4 5 6 7 <==> 3 4 // EQUI // 5 // +8 9 10 <==> 12 13 14 // EQUI // 5 // + + + + + +// the other terminals are connected to the positive terminal. +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 the : +2 other : +3 terminals : +4 are : +5 connected : +6 to : +7 the : +8 positive : +9 terminal. : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 2 3 <==> 1 2 3 4 5 // EQUI // 5 // +4 5 <==> 6 7 // EQUI // 5 // +6 7 8 9 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// The bulb takes away the path. +// there is an open path + +1 The : +2 bulb : +3 takes : +4 away : +5 the : +6 path. : + + +1 there : +2 is : +3 an : +4 open : +5 path : + + +5 6 <==> 1 // EQUI // 5 // + + + + + +// There is no gap between the positive terminal and terminal 4 +// Terminal 4 and the positive terminal are not separated by the gap + +1 There : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 positive : +8 terminal : +9 and : +10 terminal : +11 4 : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +1 <==> 10 11 12 // EQUI // 5 // +5 6 7 8 9 10 11 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// Bulb a created a gap +// If bulb A burns out, neither B nor C is in a closed path + +1 Bulb : +2 a : +3 created : +4 a : +5 gap : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +1 2 <==> 2 3 // EQUI // 5 // + + + + + +// terminal 6 is connected to the positive terminal of the battery +// Terminal 6 and the positive terminal are connected + +1 terminal : +2 6 : +3 is : +4 connected : +5 to : +6 the : +7 positive : +8 terminal : +9 of : +10 the : +11 battery : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// the bulb is in a closed circuit +// the battery is in an open path + +1 the : +2 bulb : +3 is : +4 in : +5 a : +6 closed : +7 circuit : + + +1 the : +2 battery : +3 is : +4 in : +5 an : +6 open : +7 path : + + +3 <==> 1 2 // EQUI // 5 // + + + + + +// The circuit is not closed around the battery. +// The battery in 2 is not in a closed path + +1 The : +2 circuit : +3 is : +4 not : +5 closed : +6 around : +7 the : +8 battery. : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +3 4 5 <==> 5 6 // EQUI // 5 // +6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// the bulb is not contained in a closed path. +// The battery is contained in a path which does not contain any other components + +1 the : +2 bulb : +3 is : +4 not : +5 contained : +6 in : +7 a : +8 closed : +9 path. : + + +1 The : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 path : +8 which : +9 does : +10 not : +11 contain : +12 any : +13 other : +14 components : + + +1 2 <==> 1 2 // EQUI // 5 // +6 7 8 9 <==> 5 6 7 // EQUI // 5 // + + + + + +// There is a gap in the circuit. +// there is a gap in a circuit + +1 There : +2 is : +3 a : +4 gap : +5 in : +6 the : +7 circuit. : + + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 a : +7 circuit : + + +1 <==> 1 // EQUI // 5 // +2 <==> 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +5 6 7 <==> 5 6 7 // EQUI // 5 // + + + + + +// Bulb B and bulb C are still on closed paths with the battery. +// bulbs A and B are still in closed paths with the battery + +1 Bulb : +2 B : +3 and : +4 bulb : +5 C : +6 are : +7 still : +8 on : +9 closed : +10 paths : +11 with : +12 the : +13 battery. : + + +1 bulbs : +2 A : +3 and : +4 B : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 5 // EQUI // 5 // +7 <==> 6 // EQUI // 5 // +8 9 10 <==> 7 8 9 // EQUI // 5 // +11 12 13 <==> 10 11 12 // EQUI // 5 // + + + + + +// Bulb A has a closed pathway +// Bulb A was still contained in the same closed path with the battery. + +1 Bulb : +2 A : +3 has : +4 a : +5 closed : +6 pathway : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +4 5 6 <==> 6 7 8 9 10 // EQUI // 5 // + + + + + +// bulbs a and c are not in the same closed path as bulb b +// Bulb B is in a separate path + +1 bulbs : +2 a : +3 and : +4 c : +5 are : +6 not : +7 in : +8 the : +9 same : +10 closed : +11 path : +12 as : +13 bulb : +14 b : + + +1 Bulb : +2 B : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +5 6 <==> 3 // EQUI // 5 // +7 8 9 10 11 <==> 4 5 6 7 // EQUI // 5 // +12 <==> 3 // EQUI // 5 // +13 14 <==> 1 2 // EQUI // 5 // + + + + + +// Only one terminal is involved in the circuit. +// The battery in 2 is not in a closed path + +1 Only : +2 one : +3 terminal : +4 is : +5 involved : +6 in : +7 the : +8 circuit. : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +4 5 <==> 7 8 9 10 // EQUI // 5 // +6 7 8 <==> 3 4 // EQUI // 5 // + + + + + +// there was closed paths between the battery +// Bulb A was still contained in the same closed path with the battery. + +1 there : +2 was : +3 closed : +4 paths : +5 between : +6 the : +7 battery : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +2 <==> 5 // EQUI // 5 // +3 4 <==> 6 7 8 9 10 // EQUI // 5 // +5 6 7 <==> 11 12 13 // EQUI // 5 // + + + + + +// the gap separates the positive battery terminal from terminal 2 +// Terminal 2 and the positive terminal are separated by the gap + +1 the : +2 gap : +3 separates : +4 the : +5 positive : +6 battery : +7 terminal : +8 from : +9 terminal : +10 2 : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 9 10 11 // EQUI // 5 // +3 <==> 7 8 // EQUI // 5 // +4 5 6 7 8 9 10 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulb a, bulb b, and bulb c are contained in differentclosed paths. +// A and C are in different paths with the battery + +1 bulb : +2 a, : +3 bulb : +4 b, : +5 and : +6 bulb : +7 c : +8 are : +9 contained : +10 in : +11 differentclosed : +12 paths. : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : +8 with : +9 the : +10 battery : + + +1 2 3 4 5 6 7 <==> 1 2 3 // EQUI // 5 // +8 9 <==> 4 // EQUI // 5 // +10 11 12 <==> 5 6 7 // EQUI // 5 // + + + + + +// If any bulb is out, it affects the whole system and everything is blocked from the battery. +// each bulb is in its own path + +1 If : +2 any : +3 bulb : +4 is : +5 out, : +6 it : +7 affects : +8 the : +9 whole : +10 system : +11 and : +12 everything : +13 is : +14 blocked : +15 from : +16 the : +17 battery. : + + +1 each : +2 bulb : +3 is : +4 in : +5 its : +6 own : +7 path : + + +2 3 <==> 1 2 // EQUI // 5 // +6 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// it is not in the same path. +// Bulb A is still in a closed path with the battery + +1 it : +2 is : +3 not : +4 in : +5 the : +6 same : +7 path. : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +4 5 6 7 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// There will be a gap in the path +// If bulb A burns out, neither B nor C is in a closed path + +1 There : +2 will : +3 be : +4 a : +5 gap : +6 in : +7 the : +8 path : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +2 3 <==> 1 // EQUI // 5 // +4 5 6 7 8 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// Bulb B and C are still contained in a path with the battery +// bulbs B and C are still in closed paths with the battery + +1 Bulb : +2 B : +3 and : +4 C : +5 are : +6 still : +7 contained : +8 in : +9 a : +10 path : +11 with : +12 the : +13 battery : + + +1 bulbs : +2 B : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +5 <==> 5 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +8 9 10 <==> 7 8 9 // EQUI // 5 // +11 12 13 <==> 10 11 12 // EQUI // 5 // + + + + + +// bulbs a and c are still contained in a closed path with the battery. +// Bulbs A and C are still in closed paths with the battery + +1 bulbs : +2 a : +3 and : +4 c : +5 are : +6 still : +7 contained : +8 in : +9 a : +10 closed : +11 path : +12 with : +13 the : +14 battery. : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +5 <==> 5 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +8 9 10 11 <==> 7 8 9 // EQUI // 5 // +12 13 14 <==> 10 11 12 // EQUI // 5 // + + + + + +// Terminal one is not connected to the positive battery terminal +// Terminal 1 and the positive terminal are not connected + +1 Terminal : +2 one : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 positive : +9 battery : +10 terminal : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 5 <==> 7 8 9 // EQUI // 5 // + + + + + +// bulb A and switch Z are in a closed path +// Bulb A is still contained in a closed path with the battery and switch Z. + +1 bulb : +2 A : +3 and : +4 switch : +5 Z : +6 are : +7 in : +8 a : +9 closed : +10 path : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 Z. : + + +1 2 3 4 5 <==> 1 2 // EQUI // 5 // +6 <==> 4 // EQUI // 5 // +7 8 9 10 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// Terminal 5 is connected to the postitive battery terminal +// Terminal 5 and the positive terminal are connected + +1 Terminal : +2 5 : +3 is : +4 connected : +5 to : +6 the : +7 postitive : +8 battery : +9 terminal : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// Terminal 6 is connected to the positive battery terminal +// Terminal 6 and the positive terminal are connected + +1 Terminal : +2 6 : +3 is : +4 connected : +5 to : +6 the : +7 positive : +8 battery : +9 terminal : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// the red x means that the circuit is not safe. +// there is a short circuit + +1 the : +2 red : +3 x : +4 means : +5 that : +6 the : +7 circuit : +8 is : +9 not : +10 safe. : + + +1 there : +2 is : +3 a : +4 short : +5 circuit : + + +6 7 <==> 1 // EQUI // 5 // + + + + + +// both bulbs B and C are in the same path as bulb A +// If bulb A burns out, neither B nor C is in a closed path + +1 both : +2 bulbs : +3 B : +4 and : +5 C : +6 are : +7 in : +8 the : +9 same : +10 path : +11 as : +12 bulb : +13 A : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +2 3 4 5 <==> 6 7 8 9 // EQUI // 5 // +6 <==> 10 // EQUI // 5 // +7 8 9 10 <==> 11 12 13 14 // EQUI // 5 // +11 <==> 1 // EQUI // 5 // +12 13 <==> 2 3 // EQUI // 5 // + + + + + +// if the electrical state is non-zero you can find the gap in the circuit +// A non-zero voltage means that there is a gap + +1 if : +2 the : +3 electrical : +4 state : +5 is : +6 non-zero : +7 you : +8 can : +9 find : +10 the : +11 gap : +12 in : +13 the : +14 circuit : + + +1 A : +2 non-zero : +3 voltage : +4 means : +5 that : +6 there : +7 is : +8 a : +9 gap : + + +6 <==> 1 2 3 // EQUI // 5 // +10 11 <==> 8 9 // EQUI // 5 // + + + + + +// The battery is contained in a closed circuit and there is nothing in its pathway +// The battery is contained in a closed path which does not contain any other components + +1 The : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 closed : +8 circuit : +9 and : +10 there : +11 is : +12 nothing : +13 in : +14 its : +15 pathway : + + +1 The : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 closed : +8 path : +9 which : +10 does : +11 not : +12 contain : +13 any : +14 other : +15 components : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 8 // EQUI // 5 // +9 <==> 9 // EQUI // 5 // +10 <==> 13 14 15 // EQUI // 5 // +12 <==> 10 11 12 // EQUI // 5 // + + + + + +// A terminal is not connected to the positive battery terminal. +// Terminals 1 and 4 are connected + +1 A : +2 terminal : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 positive : +9 battery : +10 terminal. : + + +1 Terminals : +2 1 : +3 and : +4 4 : +5 are : +6 connected : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +6 7 8 9 10 <==> 5 6 // EQUI // 5 // + + + + + +// there is a gap in the circuit +// Terminals 1 and 4 are connected + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 the : +7 circuit : + + +1 Terminals : +2 1 : +3 and : +4 4 : +5 are : +6 connected : + + +2 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// the positive terminal is not seperated by a gap from terminal 5 +// Terminal 5 and the positive terminal are not separated by the gap + +1 the : +2 positive : +3 terminal : +4 is : +5 not : +6 seperated : +7 by : +8 a : +9 gap : +10 from : +11 terminal : +12 5 : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +1 2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // +4 5 6 <==> 7 8 9 // EQUI // 5 // +7 8 9 <==> 10 11 12 // EQUI // 5 // + + + + + +// You can find where there is a gap +// Measuring voltage indicates whether two terminals are separated by a gap. + +1 You : +2 can : +3 find : +4 where : +5 there : +6 is : +7 a : +8 gap : + + +1 Measuring : +2 voltage : +3 indicates : +4 whether : +5 two : +6 terminals : +7 are : +8 separated : +9 by : +10 a : +11 gap. : + + +7 8 <==> 9 10 11 // EQUI // 5 // + + + + + +// has to do something with a gap +// Terminal 2 and the positive terminal are separated by the gap + +1 has : +2 to : +3 do : +4 something : +5 with : +6 a : +7 gap : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +5 6 7 <==> 9 10 11 // EQUI // 5 // + + + + + +// Because the positive circuit has a voltage of 1.5 volts. +// Terminal 1 and the positive terminal are separated by the gap + +1 Because : +2 the : +3 positive : +4 circuit : +5 has : +6 a : +7 voltage : +8 of : +9 1.5 : +10 volts. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +2 3 4 <==> 1 2 3 4 5 6 // EQUI // 5 // +6 7 <==> 7 8 // EQUI // 5 // + + + + + +// There is a chemical reaction. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 There : +2 is : +3 a : +4 chemical : +5 reaction. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +3 4 5 <==> 4 5 6 // EQUI // 5 // + + + + + +// when the switch is the in a closed path with the bulb +// When the switch and the bulb are contained in the same path + +1 when : +2 the : +3 switch : +4 is : +5 the : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 bulb : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 3 4 5 6 // EQUI // 5 // +6 7 8 9 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// bulb b and c are in a closed path +// B and C are in the same path + +1 bulb : +2 b : +3 and : +4 c : +5 are : +6 in : +7 a : +8 closed : +9 path : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +5 <==> 4 // EQUI // 5 // +6 7 8 9 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// There is a difference in electrical states. +// the terminals are not connected + +1 There : +2 is : +3 a : +4 difference : +5 in : +6 electrical : +7 states. : + + +1 the : +2 terminals : +3 are : +4 not : +5 connected : + + +5 6 7 <==> 3 4 5 // EQUI // 5 // + + + + + +// the bulb will not light +// there is no gap between the terminals + +1 the : +2 bulb : +3 will : +4 not : +5 light : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +3 4 5 <==> 3 4 // EQUI // 5 // + + + + + +// bulb a and c are contained on the same path with the battery +// A and C are not in the same path with the battery + +1 bulb : +2 a : +3 and : +4 c : +5 are : +6 contained : +7 on : +8 the : +9 same : +10 path : +11 with : +12 the : +13 battery : + + +1 A : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 path : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +5 6 <==> 4 5 // EQUI // 5 // +7 8 9 10 <==> 6 7 8 9 // EQUI // 5 // +11 12 13 <==> 10 11 12 // EQUI // 5 // + + + + + +// The path does not close +// the battery is in an open path + +1 The : +2 path : +3 does : +4 not : +5 close : + + +1 the : +2 battery : +3 is : +4 in : +5 an : +6 open : +7 path : + + +1 2 3 4 5 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// The difference between the electrical states is 1.5 volts +// Terminal 1 and the positive terminal are separated by the gap + +1 The : +2 difference : +3 between : +4 the : +5 electrical : +6 states : +7 is : +8 1.5 : +9 volts : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 9 10 11 // EQUI // 5 // + + + + + +// there is still a closed path +// If bulb A burns out, bulbs B and C are still in a closed path + +1 there : +2 is : +3 still : +4 a : +5 closed : +6 path : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 bulbs : +7 B : +8 and : +9 C : +10 are : +11 still : +12 in : +13 a : +14 closed : +15 path : + + +2 <==> 10 // EQUI // 5 // +3 <==> 11 // EQUI // 5 // +4 5 6 <==> 12 13 14 15 // EQUI // 5 // + + + + + +// a gap causes a lost connection +// A non-zero voltage means that the terminals are not connected. + +1 a : +2 gap : +3 causes : +4 a : +5 lost : +6 connection : + + +1 A : +2 non-zero : +3 voltage : +4 means : +5 that : +6 the : +7 terminals : +8 are : +9 not : +10 connected. : + + +3 <==> 4 // EQUI // 5 // + + + + + +// the positive terminal and terminal 6 are connected +// Terminal 6 and the positive terminal are connected + +1 the : +2 positive : +3 terminal : +4 and : +5 terminal : +6 6 : +7 are : +8 connected : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 3 4 5 6 <==> 1 2 3 4 5 6 // EQUI // 5 // +7 8 <==> 7 8 // EQUI // 5 // + + + + + +// the positive terminal is connected to terminal 6 +// Terminal 6 and the positive terminal are connected + +1 the : +2 positive : +3 terminal : +4 is : +5 connected : +6 to : +7 terminal : +8 6 : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // +4 5 <==> 7 8 // EQUI // 5 // + + + + + +// Because there is no gap at terminal 1 +// terminal 1 is connected to the negative battery terminal + +1 Because : +2 there : +3 is : +4 no : +5 gap : +6 at : +7 terminal : +8 1 : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +1 <==> 3 4 // EQUI // 5 // +6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// terminal 6 is conncted to the positive terminal +// Terminal 6 and the positive terminal are connected + +1 terminal : +2 6 : +3 is : +4 conncted : +5 to : +6 the : +7 positive : +8 terminal : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// When the switch is in the same papth as the bulb. +// When the switch and the bulb are contained in the same path + +1 When : +2 the : +3 switch : +4 is : +5 in : +6 the : +7 same : +8 papth : +9 as : +10 the : +11 bulb. : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 3 4 5 6 // EQUI // 5 // +4 <==> 7 8 // EQUI // 5 // + + + + + +// Bulbs A and C are in separate paths. +// A and C are in different paths + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 in : +7 separate : +8 paths. : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +5 <==> 4 // EQUI // 5 // +6 7 8 <==> 5 6 7 // EQUI // 5 // + + + + + +// bulb a and bulb b are still in a closed path with the battery. +// bulbs A and B are still in closed paths with the battery + +1 bulb : +2 a : +3 and : +4 bulb : +5 b : +6 are : +7 still : +8 in : +9 a : +10 closed : +11 path : +12 with : +13 the : +14 battery. : + + +1 bulbs : +2 A : +3 and : +4 B : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 5 // EQUI // 5 // +7 <==> 6 // EQUI // 5 // +8 9 10 11 <==> 7 8 9 // EQUI // 5 // +12 13 14 <==> 10 11 12 // EQUI // 5 // + + + + + +// The positive battery terminal was not separted by a gap from terminal 6 +// Terminal 6 and the positive terminal are not separated by the gap + +1 The : +2 positive : +3 battery : +4 terminal : +5 was : +6 not : +7 separted : +8 by : +9 a : +10 gap : +11 from : +12 terminal : +13 6 : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +5 6 7 <==> 7 8 9 // EQUI // 5 // +8 9 10 <==> 10 11 12 // EQUI // 5 // +11 12 13 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// A GAP WIL BE CREATED +// If bulb A burns out, neither B nor C is in a closed path + +1 A : +2 GAP : +3 WIL : +4 BE : +5 CREATED : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +1 2 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// bulb a and c are contained in different paths with the battery +// A and C are in different paths with the battery + +1 bulb : +2 a : +3 and : +4 c : +5 are : +6 contained : +7 in : +8 different : +9 paths : +10 with : +11 the : +12 battery : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : +8 with : +9 the : +10 battery : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +7 8 9 <==> 5 6 7 // EQUI // 5 // +10 11 12 <==> 8 9 10 // EQUI // 5 // + + + + + +// The positive terminal is connected to terminal 4. +// Terminal 4 and the positive terminal are connected + +1 The : +2 positive : +3 terminal : +4 is : +5 connected : +6 to : +7 terminal : +8 4. : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // +4 5 <==> 7 8 // EQUI // 5 // + + + + + +// not contained inthe same path +// If C burns out, then A and B are still in a closed path. + +1 not : +2 contained : +3 inthe : +4 same : +5 path : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path. : + + +3 4 5 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// bulb c does not create a gap in the path for bulb b and a +// If C is damaged, A and B are still in a closed path + +1 bulb : +2 c : +3 does : +4 not : +5 create : +6 a : +7 gap : +8 in : +9 the : +10 path : +11 for : +12 bulb : +13 b : +14 and : +15 a : + + +1 If : +2 C : +3 is : +4 damaged, : +5 A : +6 and : +7 B : +8 are : +9 still : +10 in : +11 a : +12 closed : +13 path : + + +1 2 <==> 2 // EQUI // 5 // +6 7 8 9 10 <==> 10 11 12 13 // EQUI // 5 // +11 12 13 14 15 <==> 5 6 7 // EQUI // 5 // + + + + + +// becuase the other terminals are connected to the positive battery terminal +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 becuase : +2 the : +3 other : +4 terminals : +5 are : +6 connected : +7 to : +8 the : +9 positive : +10 battery : +11 terminal : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +2 3 4 <==> 1 2 3 4 5 // EQUI // 5 // +5 6 <==> 6 7 // EQUI // 5 // +7 8 9 10 11 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// because terminal one and the positive battery terminal are on a closed path +// terminal 1 is connected to the negative battery terminal + +1 because : +2 terminal : +3 one : +4 and : +5 the : +6 positive : +7 battery : +8 terminal : +9 are : +10 on : +11 a : +12 closed : +13 path : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +2 3 4 5 6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// Battery will always have voltage. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 Battery : +2 will : +3 always : +4 have : +5 voltage. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 <==> 1 2 // EQUI // 5 // + + + + + +// the terminals are not connected +// Terminal 1 and the positive terminal are not connected + +1 the : +2 terminals : +3 are : +4 not : +5 connected : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 5 <==> 7 8 9 // EQUI // 5 // + + + + + +// the positive battery terminal is connected to terminal 6 +// Terminal 6 and the positive terminal are connected + +1 the : +2 positive : +3 battery : +4 terminal : +5 is : +6 connected : +7 to : +8 terminal : +9 6 : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +5 6 <==> 7 8 // EQUI // 5 // +7 8 9 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulb a was on a closed path +// Bulb A is still contained in a closed path with the battery. + +1 bulb : +2 a : +3 was : +4 on : +5 a : +6 closed : +7 path : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 5 // EQUI // 5 // +4 5 6 7 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// Because terminal 4 is connected to the negative terminal +// Terminal 4 and the positive battery terminal are in the same electrical state + +1 Because : +2 terminal : +3 4 : +4 is : +5 connected : +6 to : +7 the : +8 negative : +9 terminal : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 battery : +7 terminal : +8 are : +9 in : +10 the : +11 same : +12 electrical : +13 state : + + +2 3 <==> 1 2 3 4 5 6 7 // EQUI // 5 // + + + + + +// bulb c is in its own pathway +// Bulb C is in a separate path + +1 bulb : +2 c : +3 is : +4 in : +5 its : +6 own : +7 pathway : + + +1 Bulb : +2 C : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 7 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// the voltage is nearest the burnt out bulb +// Measuring voltage indicates the place where the electrical state changes due to a damaged bulb. + +1 the : +2 voltage : +3 is : +4 nearest : +5 the : +6 burnt : +7 out : +8 bulb : + + +1 Measuring : +2 voltage : +3 indicates : +4 the : +5 place : +6 where : +7 the : +8 electrical : +9 state : +10 changes : +11 due : +12 to : +13 a : +14 damaged : +15 bulb. : + + +1 2 <==> 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 7 8 <==> 13 14 15 // EQUI // 5 // + + + + + +// You needed both a battery and a blub with the same path, and the path must be closed +// there is a closed path containing both the bulb and a battery + +1 You : +2 needed : +3 both : +4 a : +5 battery : +6 and : +7 a : +8 blub : +9 with : +10 the : +11 same : +12 path, : +13 and : +14 the : +15 path : +16 must : +17 be : +18 closed : + + +1 there : +2 is : +3 a : +4 closed : +5 path : +6 containing : +7 both : +8 the : +9 bulb : +10 and : +11 a : +12 battery : + + +4 5 6 7 8 <==> 8 9 10 11 12 // EQUI // 5 // +9 10 11 12 <==> 7 // EQUI // 5 // +13 <==> 6 // EQUI // 5 // +14 15 <==> 3 4 5 // EQUI // 5 // + + + + + +// Because the battery runs in a closed circuit. +// there is an incomplete circuit + +1 Because : +2 the : +3 battery : +4 runs : +5 in : +6 a : +7 closed : +8 circuit. : + + +1 there : +2 is : +3 an : +4 incomplete : +5 circuit : + + +1 <==> 2 // EQUI // 5 // +5 6 7 8 <==> 3 4 5 // EQUI // 5 // + + + + + +// If bulb B is damaged, then the circut is no longer closed. +// there is no closed path + +1 If : +2 bulb : +3 B : +4 is : +5 damaged, : +6 then : +7 the : +8 circut : +9 is : +10 no : +11 longer : +12 closed. : + + +1 there : +2 is : +3 no : +4 closed : +5 path : + + +9 <==> 2 // EQUI // 5 // +12 <==> 3 4 5 // EQUI // 5 // + + + + + +// terminal 1, terminal 2, and terminal 3 are connected o the negative battery +// Terminals 1, 2 and 3 are connected to the negative battery terminal + +1 terminal : +2 1, : +3 terminal : +4 2, : +5 and : +6 terminal : +7 3 : +8 are : +9 connected : +10 o : +11 the : +12 negative : +13 battery : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 connected : +8 to : +9 the : +10 negative : +11 battery : +12 terminal : + + +1 2 3 4 5 6 7 <==> 1 2 3 4 5 // EQUI // 5 // +8 9 <==> 6 7 // EQUI // 5 // +10 11 12 13 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// "Because it didn""t cause a gap." +// each bulb is in its own path + +1 "Because : +2 it : +3 didn""t : +4 cause : +5 a : +6 gap." : + + +1 each : +2 bulb : +3 is : +4 in : +5 its : +6 own : +7 path : + + +2 <==> 4 5 6 7 // EQUI // 5 // +5 6 <==> 3 // EQUI // 5 // + + + + + +// because there is a gap between terminal 1 and terminal 6. +// There is a gap between terminals 1 and 6 + +1 because : +2 there : +3 is : +4 a : +5 gap : +6 between : +7 terminal : +8 1 : +9 and : +10 terminal : +11 6. : + + +1 There : +2 is : +3 a : +4 gap : +5 between : +6 terminals : +7 1 : +8 and : +9 6 : + + +2 <==> 1 // EQUI // 5 // +3 <==> 2 // EQUI // 5 // +4 5 <==> 3 4 // EQUI // 5 // +6 7 8 9 10 11 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// because bulbs b and c are on a closed path with the battery +// Bulb B and Bulb C were still contained in the same closed path with the battery. + +1 because : +2 bulbs : +3 b : +4 and : +5 c : +6 are : +7 on : +8 a : +9 closed : +10 path : +11 with : +12 the : +13 battery : + + +1 Bulb : +2 B : +3 and : +4 Bulb : +5 C : +6 were : +7 still : +8 contained : +9 in : +10 the : +11 same : +12 closed : +13 path : +14 with : +15 the : +16 battery. : + + +2 3 4 5 <==> 1 2 3 4 5 // EQUI // 5 // +6 <==> 8 // EQUI // 5 // +7 8 9 10 <==> 9 10 11 12 13 // EQUI // 5 // +11 12 13 <==> 14 15 16 // EQUI // 5 // + + + + + +// The switch determines whether the path is open or closed. +// If a bulb and a switch are in the same path the switch affects the bulb + +1 The : +2 switch : +3 determines : +4 whether : +5 the : +6 path : +7 is : +8 open : +9 or : +10 closed. : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 12 13 // EQUI // 5 // +3 <==> 14 // EQUI // 5 // +5 6 <==> 8 9 10 11 // EQUI // 5 // +7 <==> 7 // EQUI // 5 // + + + + + +// the positive battery terminal is separated by a gap from terminal 4 +// Terminal 4 and the positive battery terminal are in the same electrical state + +1 the : +2 positive : +3 battery : +4 terminal : +5 is : +6 separated : +7 by : +8 a : +9 gap : +10 from : +11 terminal : +12 4 : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 battery : +7 terminal : +8 are : +9 in : +10 the : +11 same : +12 electrical : +13 state : + + +1 2 3 4 <==> 1 2 3 4 5 6 7 // EQUI // 5 // + + + + + +// an incomplete circuit would not effect the the electrical state between the terminals. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 an : +2 incomplete : +3 circuit : +4 would : +5 not : +6 effect : +7 the : +8 the : +9 electrical : +10 state : +11 between : +12 the : +13 terminals. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 3 <==> 1 2 // EQUI // 5 // +7 8 9 10 <==> 9 10 11 // EQUI // 5 // +11 12 13 <==> 12 13 14 // EQUI // 5 // + + + + + +// terminals 4, 5, and 6 are connected to the positive battery terminal +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 terminals : +2 4, : +3 5, : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 2 3 4 5 <==> 1 2 3 4 5 // EQUI // 5 // +6 7 <==> 6 7 // EQUI // 5 // +8 9 10 11 12 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// The path it was on +// there is a path containing both Z and C + +1 The : +2 path : +3 it : +4 was : +5 on : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 both : +7 Z : +8 and : +9 C : + + +1 2 <==> 3 4 // EQUI // 5 // +4 <==> 2 // EQUI // 5 // + + + + + +// If the bulb is on the same closed path +// The damaged bulb and the other bulb must be contained in the same path + +1 If : +2 the : +3 bulb : +4 is : +5 on : +6 the : +7 same : +8 closed : +9 path : + + +1 The : +2 damaged : +3 bulb : +4 and : +5 the : +6 other : +7 bulb : +8 must : +9 be : +10 contained : +11 in : +12 the : +13 same : +14 path : + + +2 3 <==> 1 2 3 4 5 6 7 // EQUI // 5 // +5 6 7 8 9 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// bulb a was still contained in a closed path with the battery. +// Bulb A was still contained in the same closed path with the battery. + +1 bulb : +2 a : +3 was : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery. : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 <==> 4 // EQUI // 5 // +5 <==> 5 // EQUI // 5 // +6 7 8 9 <==> 6 7 8 9 10 // EQUI // 5 // +10 11 12 <==> 11 12 13 // EQUI // 5 // + + + + + +// If one bulb is removed, the others stop working +// A and C are in the same closed path + +1 If : +2 one : +3 bulb : +4 is : +5 removed, : +6 the : +7 others : +8 stop : +9 working : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 closed : +9 path : + + +2 3 <==> 1 2 3 // EQUI // 5 // +8 <==> 4 // EQUI // 5 // + + + + + +// because all the terminals are connected to other terminals, an open switch disrupts that. +// the open switch creates a gap + +1 because : +2 all : +3 the : +4 terminals : +5 are : +6 connected : +7 to : +8 other : +9 terminals, : +10 an : +11 open : +12 switch : +13 disrupts : +14 that. : + + +1 the : +2 open : +3 switch : +4 creates : +5 a : +6 gap : + + +10 11 12 <==> 1 2 3 // EQUI // 5 // + + + + + +// There is a gap between the two bulb terminals +// the terminals are separated by a gap + +1 There : +2 is : +3 a : +4 gap : +5 between : +6 the : +7 two : +8 bulb : +9 terminals : + + +1 the : +2 terminals : +3 are : +4 separated : +5 by : +6 a : +7 gap : + + +2 3 4 <==> 3 4 5 6 7 // EQUI // 5 // +5 6 7 8 9 <==> 1 2 // EQUI // 5 // + + + + + +// a short circuit has occured +// there is a short circuit + +1 a : +2 short : +3 circuit : +4 has : +5 occured : + + +1 there : +2 is : +3 a : +4 short : +5 circuit : + + +1 2 3 <==> 3 4 5 // EQUI // 5 // +4 5 <==> 2 // EQUI // 5 // + + + + + +// there will be a gap at bulb b, thus affecting the rest of the circuit +// bulb B creates a gap + +1 there : +2 will : +3 be : +4 a : +5 gap : +6 at : +7 bulb : +8 b, : +9 thus : +10 affecting : +11 the : +12 rest : +13 of : +14 the : +15 circuit : + + +1 bulb : +2 B : +3 creates : +4 a : +5 gap : + + +1 <==> 3 // EQUI // 5 // +4 5 <==> 4 5 // EQUI // 5 // +6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// terminal 3 and the positie terminal are not connected. +// Terminal 3 and the positive terminal are not connected + +1 terminal : +2 3 : +3 and : +4 the : +5 positie : +6 terminal : +7 are : +8 not : +9 connected. : + + +1 Terminal : +2 3 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 3 4 5 6 <==> 1 2 3 4 5 6 // EQUI // 5 // +7 8 9 <==> 7 8 9 // EQUI // 5 // + + + + + +// The positive battery terminal was not seperated by a gap from terminal 4. +// Terminal 4 and the positive terminal are not separated by the gap + +1 The : +2 positive : +3 battery : +4 terminal : +5 was : +6 not : +7 seperated : +8 by : +9 a : +10 gap : +11 from : +12 terminal : +13 4. : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +5 6 7 <==> 7 8 9 // EQUI // 5 // +8 9 10 <==> 10 11 12 // EQUI // 5 // +11 12 13 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// Terminal 1 is connected to the negative terminal. +// terminal 1 is connected to the negative battery terminal + +1 Terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 terminal. : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// A terminal is not connected to the positive battery terminal. +// Terminals 1 and 2 are connected + +1 A : +2 terminal : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 positive : +9 battery : +10 terminal. : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 connected : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +3 4 5 <==> 5 6 // EQUI // 5 // + + + + + +// the positive terminal and terminal 2 are seperated by a gap +// Terminal 2 and the positive terminal are separated by the gap + +1 the : +2 positive : +3 terminal : +4 and : +5 terminal : +6 2 : +7 are : +8 seperated : +9 by : +10 a : +11 gap : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 3 4 5 6 <==> 1 2 3 4 5 6 // EQUI // 5 // +7 8 <==> 7 8 // EQUI // 5 // +9 10 11 <==> 9 10 11 // EQUI // 5 // + + + + + +// there is not gap between the terminals +// terminal 1 is connected to the negative battery terminal + +1 there : +2 is : +3 not : +4 gap : +5 between : +6 the : +7 terminals : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +5 6 7 <==> 3 4 // EQUI // 5 // + + + + + +// there is a gap between teh positive battery terminal and terminal 4. +// Terminal 4 and the positive battery terminal are in the same electrical state + +1 there : +2 is : +3 a : +4 gap : +5 between : +6 teh : +7 positive : +8 battery : +9 terminal : +10 and : +11 terminal : +12 4. : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 battery : +7 terminal : +8 are : +9 in : +10 the : +11 same : +12 electrical : +13 state : + + +5 6 7 8 9 10 11 12 <==> 1 2 3 4 5 6 7 // EQUI // 5 // + + + + + +// The positive battery was not connected to terminal one. +// Terminal 1 and the positive terminal are not connected + +1 The : +2 positive : +3 battery : +4 was : +5 not : +6 connected : +7 to : +8 terminal : +9 one. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +4 5 6 <==> 7 8 9 // EQUI // 5 // +7 8 9 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// Bulbs A and B will still be contained in a closed path to the battery. +// bulbs A and B are still in closed paths with the battery + +1 Bulbs : +2 A : +3 and : +4 B : +5 will : +6 still : +7 be : +8 contained : +9 in : +10 a : +11 closed : +12 path : +13 to : +14 the : +15 battery. : + + +1 bulbs : +2 A : +3 and : +4 B : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 8 <==> 5 // EQUI // 5 // +9 10 11 12 <==> 7 8 9 // EQUI // 5 // +13 14 15 <==> 10 11 12 // EQUI // 5 // + + + + + +// the two components are seperated. +// Terminal 1 and the positive terminal are separated by the gap + +1 the : +2 two : +3 components : +4 are : +5 seperated. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +4 5 <==> 7 8 // EQUI // 5 // + + + + + +// because terminal 1 is directly connected to terminal 4 +// Terminals 1 and 4 are connected + +1 because : +2 terminal : +3 1 : +4 is : +5 directly : +6 connected : +7 to : +8 terminal : +9 4 : + + +1 Terminals : +2 1 : +3 and : +4 4 : +5 are : +6 connected : + + +6 <==> 5 6 // EQUI // 5 // +7 8 9 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// the positive battery terminal and terminal 4 are connected +// Terminal 4 and the positive terminal are connected + +1 the : +2 positive : +3 battery : +4 terminal : +5 and : +6 terminal : +7 4 : +8 are : +9 connected : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 3 4 5 6 7 <==> 1 2 3 4 5 6 // EQUI // 5 // +8 9 <==> 7 8 // EQUI // 5 // + + + + + +// Terminal 1 and terminal 2 are on the same side. +// Terminals 1 and 2 are connected + +1 Terminal : +2 1 : +3 and : +4 terminal : +5 2 : +6 are : +7 on : +8 the : +9 same : +10 side. : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 connected : + + +1 2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 7 8 9 10 <==> 5 6 // EQUI // 5 // + + + + + +// not connected to positive battery +// Terminal 2 and the positive terminal are not connected + +1 not : +2 connected : +3 to : +4 positive : +5 battery : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 <==> 7 8 9 // EQUI // 5 // +3 4 5 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// The battery uses a chemical reaction to maintain the voltage, +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 The : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 the : +10 voltage, : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 <==> 4 5 6 // EQUI // 5 // +7 8 <==> 7 8 // EQUI // 5 // + + + + + +// Because the bulb does not have a closed path. +// The bulb is not in the closed path containing the battery + +1 Because : +2 the : +3 bulb : +4 does : +5 not : +6 have : +7 a : +8 closed : +9 path. : + + +1 The : +2 bulb : +3 is : +4 not : +5 in : +6 the : +7 closed : +8 path : +9 containing : +10 the : +11 battery : + + +2 3 <==> 1 2 // EQUI // 5 // +4 5 6 <==> 3 4 // EQUI // 5 // +7 8 9 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// there is a difference in electrical states +// the terminals are separated by a gap + +1 there : +2 is : +3 a : +4 difference : +5 in : +6 electrical : +7 states : + + +1 the : +2 terminals : +3 are : +4 separated : +5 by : +6 a : +7 gap : + + +3 4 <==> 5 6 7 // EQUI // 5 // + + + + + +// terminal is connected to postive terminal of the battery +// Terminal 6 and the positive terminal are connected + +1 terminal : +2 is : +3 connected : +4 to : +5 postive : +6 terminal : +7 of : +8 the : +9 battery : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 <==> 1 2 3 4 5 6 // EQUI // 5 // +2 3 <==> 7 8 // EQUI // 5 // + + + + + +// Terminal 1 is seperated from the positive terminal +// Terminal 1 and the positive terminal are separated by the gap + +1 Terminal : +2 1 : +3 is : +4 seperated : +5 from : +6 the : +7 positive : +8 terminal : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// Battery is not contained i a closed path. +// The battery in 4 is not in a closed path + +1 Battery : +2 is : +3 not : +4 contained : +5 i : +6 a : +7 closed : +8 path. : + + +1 The : +2 battery : +3 in : +4 4 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 <==> 1 2 // EQUI // 5 // +2 3 4 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// terminal 1 was connected to the positive battery terminal +// Terminal 1 and the positive terminal are separated by the gap + +1 terminal : +2 1 : +3 was : +4 connected : +5 to : +6 the : +7 positive : +8 battery : +9 terminal : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// There are 2 paths in this diagram +// there is a path containing A and a different path containing B and C + +1 There : +2 are : +3 2 : +4 paths : +5 in : +6 this : +7 diagram : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A : +7 and : +8 a : +9 different : +10 path : +11 containing : +12 B : +13 and : +14 C : + + +1 <==> 1 // EQUI // 5 // + + + + + +// Because the switch was connected to the closed circuit +// there is no path containing both switch Y and bulb A + +1 Because : +2 the : +3 switch : +4 was : +5 connected : +6 to : +7 the : +8 closed : +9 circuit : + + +1 there : +2 is : +3 no : +4 path : +5 containing : +6 both : +7 switch : +8 Y : +9 and : +10 bulb : +11 A : + + +2 3 <==> 7 8 9 10 11 // EQUI // 5 // + + + + + +// damaged bulb creates a gap. +// a damaged bulb creates a gap + +1 damaged : +2 bulb : +3 creates : +4 a : +5 gap. : + + +1 a : +2 damaged : +3 bulb : +4 creates : +5 a : +6 gap : + + +1 2 <==> 1 2 3 // EQUI // 5 // +3 <==> 4 // EQUI // 5 // +4 5 <==> 5 6 // EQUI // 5 // + + + + + +// that the battery connection does not work +// there is a short circuit + +1 that : +2 the : +3 battery : +4 connection : +5 does : +6 not : +7 work : + + +1 there : +2 is : +3 a : +4 short : +5 circuit : + + +1 <==> 2 // EQUI // 5 // +2 3 4 5 6 7 <==> 3 4 5 // EQUI // 5 // + + + + + +// because the terminals are not connected +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 because : +2 the : +3 terminals : +4 are : +5 not : +6 connected : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +2 3 <==> 12 13 14 // EQUI // 5 // + + + + + +// Terminal 5 is connected to teh positive battery terminal +// Terminal 5 and the positive terminal are connected + +1 Terminal : +2 5 : +3 is : +4 connected : +5 to : +6 teh : +7 positive : +8 battery : +9 terminal : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// terminal 1 was connected to the positive terminal +// Terminal 1 and the positive terminal are separated by the gap + +1 terminal : +2 1 : +3 was : +4 connected : +5 to : +6 the : +7 positive : +8 terminal : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// there is a gap between terminal one and two and the positive battery terminal +// Terminals 1 and 2 are in the same electrical state + +1 there : +2 is : +3 a : +4 gap : +5 between : +6 terminal : +7 one : +8 and : +9 two : +10 and : +11 the : +12 positive : +13 battery : +14 terminal : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 in : +7 the : +8 same : +9 electrical : +10 state : + + +5 6 7 8 9 10 11 12 13 14 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// bulbs b and c are contained on the same path with the battery +// B and C are in the same path with the battery + +1 bulbs : +2 b : +3 and : +4 c : +5 are : +6 contained : +7 on : +8 the : +9 same : +10 path : +11 with : +12 the : +13 battery : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : +9 with : +10 the : +11 battery : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +7 8 9 10 <==> 5 6 7 8 // EQUI // 5 // +11 12 13 <==> 9 10 11 // EQUI // 5 // + + + + + +// because there is no closed path to the battery +// the path is not closed + +1 because : +2 there : +3 is : +4 no : +5 closed : +6 path : +7 to : +8 the : +9 battery : + + +1 the : +2 path : +3 is : +4 not : +5 closed : + + +3 4 5 6 <==> 1 2 3 4 5 // EQUI // 5 // + + + + + +// terminal 1 is not connected to the positive battery terminal +// Terminal 1 and the positive terminal are not connected + +1 terminal : +2 1 : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 positive : +9 battery : +10 terminal : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 5 <==> 7 8 9 // EQUI // 5 // + + + + + +// the battery is not in a closed bath alone +// The battery in 2 is not in a closed path + +1 the : +2 battery : +3 is : +4 not : +5 in : +6 a : +7 closed : +8 bath : +9 alone : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 5 6 // EQUI // 5 // + + + + + +// terminal 5 is connected to postive terminal of the battery +// Terminal 5 and the positive terminal are connected + +1 terminal : +2 5 : +3 is : +4 connected : +5 to : +6 postive : +7 terminal : +8 of : +9 the : +10 battery : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// if x and z are closed then it will create a closed path +// there is a path containing A, C, Z and X + +1 if : +2 x : +3 and : +4 z : +5 are : +6 closed : +7 then : +8 it : +9 will : +10 create : +11 a : +12 closed : +13 path : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A, : +7 C, : +8 Z : +9 and : +10 X : + + +2 3 4 <==> 6 7 8 9 10 // EQUI // 5 // +8 <==> 2 // EQUI // 5 // +11 12 13 <==> 3 4 // EQUI // 5 // + + + + + +// positive terminal is serperated from terminal 2 +// Terminal 2 and the positive terminal are separated by the gap + +1 positive : +2 terminal : +3 is : +4 serperated : +5 from : +6 terminal : +7 2 : + + +1 Terminal : +2 2 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// the battery is not closed the bulb is. +// The battery in 2 is not in a closed path + +1 the : +2 battery : +3 is : +4 not : +5 closed : +6 the : +7 bulb : +8 is. : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 5 <==> 5 6 // EQUI // 5 // + + + + + +// there is not a gap in the connection +// the terminals are not separated by a gap + +1 there : +2 is : +3 not : +4 a : +5 gap : +6 in : +7 the : +8 connection : + + +1 the : +2 terminals : +3 are : +4 not : +5 separated : +6 by : +7 a : +8 gap : + + +2 3 <==> 3 4 5 // EQUI // 5 // +4 5 <==> 6 7 8 // EQUI // 5 // + + + + + +// if a bulb is in a closed circuit with a battery and a switch the switch will affect the bulb. +// When the switch and the bulb are contained in the same path + +1 if : +2 a : +3 bulb : +4 is : +5 in : +6 a : +7 closed : +8 circuit : +9 with : +10 a : +11 battery : +12 and : +13 a : +14 switch : +15 the : +16 switch : +17 will : +18 affect : +19 the : +20 bulb. : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +19 20 <==> 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulbs b and c were contained in a closed path with the battery. +// Bulb B and Bulb C were still contained in the same closed path with the battery. + +1 bulbs : +2 b : +3 and : +4 c : +5 were : +6 contained : +7 in : +8 a : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 Bulb : +2 B : +3 and : +4 Bulb : +5 C : +6 were : +7 still : +8 contained : +9 in : +10 the : +11 same : +12 closed : +13 path : +14 with : +15 the : +16 battery. : + + +1 2 3 4 <==> 1 2 3 4 5 // EQUI // 5 // +5 6 <==> 8 // EQUI // 5 // +7 8 9 10 <==> 9 10 11 12 13 // EQUI // 5 // +11 12 13 <==> 14 15 16 // EQUI // 5 // + + + + + +// Because neither components are in closed paths. +// Circuit 4 has no closed paths + +1 Because : +2 neither : +3 components : +4 are : +5 in : +6 closed : +7 paths. : + + +1 Circuit : +2 4 : +3 has : +4 no : +5 closed : +6 paths : + + +5 6 7 <==> 4 5 6 // EQUI // 5 // + + + + + +// you can see where the gap is +// Measuring voltage indicates the place where the electrical state changes due to a gap. + +1 you : +2 can : +3 see : +4 where : +5 the : +6 gap : +7 is : + + +1 Measuring : +2 voltage : +3 indicates : +4 the : +5 place : +6 where : +7 the : +8 electrical : +9 state : +10 changes : +11 due : +12 to : +13 a : +14 gap. : + + +3 <==> 3 // EQUI // 5 // +5 6 <==> 13 14 // EQUI // 5 // +7 <==> 6 // EQUI // 5 // + + + + + +// if there is a gap in the circuit there the bulb will not light up. +// A non-zero voltage means that the terminals are not connected. + +1 if : +2 there : +3 is : +4 a : +5 gap : +6 in : +7 the : +8 circuit : +9 there : +10 the : +11 bulb : +12 will : +13 not : +14 light : +15 up. : + + +1 A : +2 non-zero : +3 voltage : +4 means : +5 that : +6 the : +7 terminals : +8 are : +9 not : +10 connected. : + + +2 <==> 1 2 3 // EQUI // 5 // +6 7 8 <==> 6 7 // EQUI // 5 // +9 <==> 5 // EQUI // 5 // + + + + + +// Bulb A and Bulb B and the battery are in a closed path. +// If C burns out, then A and B are still in a closed path with the battery. + +1 Bulb : +2 A : +3 and : +4 Bulb : +5 B : +6 and : +7 the : +8 battery : +9 are : +10 in : +11 a : +12 closed : +13 path. : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery. : + + +9 <==> 9 10 // EQUI // 5 // +10 11 12 13 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// That there is a gap +// there is no gap between the terminals + +1 That : +2 there : +3 is : +4 a : +5 gap : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +4 5 <==> 3 4 // EQUI // 5 // + + + + + +// if the switch and bulb are contained in the same path, the switch will affect the bulb. +// When the switch and the bulb are contained in the same path + +1 if : +2 the : +3 switch : +4 and : +5 bulb : +6 are : +7 contained : +8 in : +9 the : +10 same : +11 path, : +12 the : +13 switch : +14 will : +15 affect : +16 the : +17 bulb. : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 4 5 <==> 2 3 4 5 6 // EQUI // 5 // +6 7 <==> 7 8 // EQUI // 5 // +8 9 10 11 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// Voltage is the difference between a positive and negative end on a battery. +// terminal 1 is connected to the negative battery terminal + +1 Voltage : +2 is : +3 the : +4 difference : +5 between : +6 a : +7 positive : +8 and : +9 negative : +10 end : +11 on : +12 a : +13 battery. : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +5 6 7 8 9 10 11 12 13 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// the path passes the energy through the switch +// If a bulb and a switch are in the same path the switch affects the bulb + +1 the : +2 path : +3 passes : +4 the : +5 energy : +6 through : +7 the : +8 switch : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 8 9 10 11 // EQUI // 5 // +6 7 8 <==> 12 13 // EQUI // 5 // + + + + + +// that the bulb terminal and battery terminal are on the same side of a disconnected circut +// The terminals are in the same state. + +1 that : +2 the : +3 bulb : +4 terminal : +5 and : +6 battery : +7 terminal : +8 are : +9 on : +10 the : +11 same : +12 side : +13 of : +14 a : +15 disconnected : +16 circut : + + +1 The : +2 terminals : +3 are : +4 in : +5 the : +6 same : +7 state. : + + +2 3 4 5 6 7 <==> 1 2 // EQUI // 5 // +8 <==> 3 // EQUI // 5 // + + + + + +// Because the battery is not in a closed path. +// The battery in 4 is not in a closed path + +1 Because : +2 the : +3 battery : +4 is : +5 not : +6 in : +7 a : +8 closed : +9 path. : + + +1 The : +2 battery : +3 in : +4 4 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +2 3 <==> 1 2 // EQUI // 5 // +4 5 <==> 5 6 // EQUI // 5 // +6 7 8 9 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// switch x is in the closed path with bulb a +// Bulb A is still contained in a closed path with the battery and switch X. + +1 switch : +2 x : +3 is : +4 in : +5 the : +6 closed : +7 path : +8 with : +9 bulb : +10 a : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 X. : + + +1 2 <==> 10 11 12 13 14 15 // EQUI // 5 // +4 5 6 7 <==> 6 7 8 9 // EQUI // 5 // +8 9 10 <==> 1 2 // EQUI // 5 // + + + + + +// There was a closed circuit +// Bulb A is still contained in a closed path with the battery. + +1 There : +2 was : +3 a : +4 closed : +5 circuit : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery. : + + +1 <==> 10 11 12 // EQUI // 5 // +3 4 5 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// "because switch z is in bulb c""s closed path" +// there is a path containing both Z and C + +1 "because : +2 switch : +3 z : +4 is : +5 in : +6 bulb : +7 c""s : +8 closed : +9 path" : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 both : +7 Z : +8 and : +9 C : + + +2 3 <==> 7 8 9 // EQUI // 5 // +4 <==> 5 // EQUI // 5 // +8 9 <==> 3 4 // EQUI // 5 // + + + + + +// Bulb A was still in a closed path +// Bulb A is still contained in a closed path with the battery and switch X. + +1 Bulb : +2 A : +3 was : +4 still : +5 in : +6 a : +7 closed : +8 path : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 X. : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 <==> 4 // EQUI // 5 // +5 6 7 8 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// Because there is a gap due to a damaged bulb. +// Terminals 1, 2 and 3 are separated from the positive battery terminal by a gap + +1 Because : +2 there : +3 is : +4 a : +5 gap : +6 due : +7 to : +8 a : +9 damaged : +10 bulb. : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 separated : +8 from : +9 the : +10 positive : +11 battery : +12 terminal : +13 by : +14 a : +15 gap : + + +4 5 <==> 13 14 15 // EQUI // 5 // + + + + + +// Bulb A was still in a closed path with the battery +// Bulb A was still contained in the same closed path with the battery. + +1 Bulb : +2 A : +3 was : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 <==> 4 // EQUI // 5 // +9 10 11 <==> 11 12 13 // EQUI // 5 // + + + + + +// The battery and light bulb are not contained in a close path +// The battery in 4 is not in a closed path + +1 The : +2 battery : +3 and : +4 light : +5 bulb : +6 are : +7 not : +8 contained : +9 in : +10 a : +11 close : +12 path : + + +1 The : +2 battery : +3 in : +4 4 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 2 3 4 5 <==> 1 2 // EQUI // 5 // +6 7 8 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// and the circut is closed +// A and C are in the same closed path + +1 and : +2 the : +3 circut : +4 is : +5 closed : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 closed : +9 path : + + +1 <==> 4 // EQUI // 5 // +4 5 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// "becuase bulb C is on it""s own pathway." +// Bulb C is in a separate path + +1 "becuase : +2 bulb : +3 C : +4 is : +5 on : +6 it""s : +7 own : +8 pathway." : + + +1 Bulb : +2 C : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +2 3 <==> 1 2 // EQUI // 5 // +4 <==> 3 // EQUI // 5 // + + + + + +// if bulb A burns out then bulbs B and C will no longer be in a closed path. +// If bulb A burns out, neither B nor C is in a closed path + +1 if : +2 bulb : +3 A : +4 burns : +5 out : +6 then : +7 bulbs : +8 B : +9 and : +10 C : +11 will : +12 no : +13 longer : +14 be : +15 in : +16 a : +17 closed : +18 path. : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 3 // EQUI // 5 // +4 5 <==> 4 5 // EQUI // 5 // +7 8 9 10 <==> 6 7 8 9 // EQUI // 5 // +15 16 17 18 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// Terminal 1 is not connected to the positive terminal. +// Terminal 1 and the positive terminal are not connected + +1 Terminal : +2 1 : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 positive : +9 terminal. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 5 <==> 7 8 9 // EQUI // 5 // + + + + + +// because the battery is not in a closed circuit +// The battery in 2 is not in a closed path + +1 because : +2 the : +3 battery : +4 is : +5 not : +6 in : +7 a : +8 closed : +9 circuit : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +2 3 <==> 1 2 // EQUI // 5 // +4 5 <==> 5 6 // EQUI // 5 // +6 7 8 9 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// the terminal it is connected to is not working +// there is no gap between the terminals + +1 the : +2 terminal : +3 it : +4 is : +5 connected : +6 to : +7 is : +8 not : +9 working : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +1 2 <==> 5 6 7 // EQUI // 5 // + + + + + +// There must be a closed path and a battery. +// there is a closed path containing both the bulb and a battery + +1 There : +2 must : +3 be : +4 a : +5 closed : +6 path : +7 and : +8 a : +9 battery. : + + +1 there : +2 is : +3 a : +4 closed : +5 path : +6 containing : +7 both : +8 the : +9 bulb : +10 and : +11 a : +12 battery : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 // EQUI // 5 // +4 5 6 7 8 9 <==> 3 4 5 6 7 8 9 10 11 12 // EQUI // 5 // + + + + + +// terminal is connected to terminal 6 +// Terminals 1 and 6 are not connected + +1 terminal : +2 is : +3 connected : +4 to : +5 terminal : +6 6 : + + +1 Terminals : +2 1 : +3 and : +4 6 : +5 are : +6 not : +7 connected : + + +4 5 6 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// because bulb a is in a closed circuit with the battery and switch x +// Bulb A is still contained in a closed path with the battery and switch X. + +1 because : +2 bulb : +3 a : +4 is : +5 in : +6 a : +7 closed : +8 circuit : +9 with : +10 the : +11 battery : +12 and : +13 switch : +14 x : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 X. : + + +1 <==> 4 // EQUI // 5 // +2 3 <==> 1 2 // EQUI // 5 // +4 <==> 3 // EQUI // 5 // +5 6 7 8 <==> 6 7 8 9 // EQUI // 5 // +9 10 11 12 13 14 <==> 10 11 12 13 14 15 // EQUI // 5 // + + + + + +// If the path is not closed, the switch will not affect the bbulb +// If a bulb and a switch are in the same path the switch affects the bulb + +1 If : +2 the : +3 path : +4 is : +5 not : +6 closed, : +7 the : +8 switch : +9 will : +10 not : +11 affect : +12 the : +13 bbulb : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 8 9 10 11 // EQUI // 5 // +7 8 <==> 14 // EQUI // 5 // + + + + + +// bulb b and c are on a closed path to the battery +// If bulb A burns out, bulbs B and C are still in a closed path + +1 bulb : +2 b : +3 and : +4 c : +5 are : +6 on : +7 a : +8 closed : +9 path : +10 to : +11 the : +12 battery : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 bulbs : +7 B : +8 and : +9 C : +10 are : +11 still : +12 in : +13 a : +14 closed : +15 path : + + +1 2 3 4 <==> 6 7 8 9 // EQUI // 5 // +5 <==> 10 // EQUI // 5 // +6 7 8 9 <==> 12 13 14 15 // EQUI // 5 // + + + + + +// since a a gap does not affect the voltage of a battery +// Terminals 1, 2 and 3 are separated from the positive battery terminal by a gap + +1 since : +2 a : +3 a : +4 gap : +5 does : +6 not : +7 affect : +8 the : +9 voltage : +10 of : +11 a : +12 battery : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 separated : +8 from : +9 the : +10 positive : +11 battery : +12 terminal : +13 by : +14 a : +15 gap : + + +2 3 4 <==> 13 14 15 // EQUI // 5 // +8 9 10 11 12 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// Because there is a light bulb +// The battery in 2 is not in a closed path + +1 Because : +2 there : +3 is : +4 a : +5 light : +6 bulb : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +3 <==> 1 2 // EQUI // 5 // + + + + + +// the bulb will be burned out because the terminals +// The damaged bulb and the other bulb must be contained in the same path + +1 the : +2 bulb : +3 will : +4 be : +5 burned : +6 out : +7 because : +8 the : +9 terminals : + + +1 The : +2 damaged : +3 bulb : +4 and : +5 the : +6 other : +7 bulb : +8 must : +9 be : +10 contained : +11 in : +12 the : +13 same : +14 path : + + +1 2 <==> 1 2 3 4 5 6 7 // EQUI // 5 // +7 <==> 8 9 10 // EQUI // 5 // + + + + + +// Because the positive batter terminal and terminal 6 were connected. +// Terminal 6 and the positive terminal are connected + +1 Because : +2 the : +3 positive : +4 batter : +5 terminal : +6 and : +7 terminal : +8 6 : +9 were : +10 connected. : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +2 3 4 5 6 7 8 <==> 1 2 3 4 5 6 // EQUI // 5 // +9 10 <==> 7 8 // EQUI // 5 // + + + + + +// because the the circuit is complete. +// the path is not closed + +1 because : +2 the : +3 the : +4 circuit : +5 is : +6 complete. : + + +1 the : +2 path : +3 is : +4 not : +5 closed : + + +2 3 4 <==> 1 2 // EQUI // 5 // + + + + + +// Bulbs B and C will still be on closed paths with the battery +// bulbs B and C are still in closed paths with the battery + +1 Bulbs : +2 B : +3 and : +4 C : +5 will : +6 still : +7 be : +8 on : +9 closed : +10 paths : +11 with : +12 the : +13 battery : + + +1 bulbs : +2 B : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 <==> 5 // EQUI // 5 // +8 9 10 <==> 7 8 9 // EQUI // 5 // +11 12 13 <==> 10 11 12 // EQUI // 5 // + + + + + +// the bulb is contained in an closed circuit +// If a bulb and a switch are in the same path the switch affects the bulb + +1 the : +2 bulb : +3 is : +4 contained : +5 in : +6 an : +7 closed : +8 circuit : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 2 3 4 5 6 // EQUI // 5 // + + + + + +// THE ARE ON THE SAME PATH +// A and C are in the same path + +1 THE : +2 ARE : +3 ON : +4 THE : +5 SAME : +6 PATH : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : + + +1 <==> 1 2 3 // EQUI // 5 // +2 <==> 4 // EQUI // 5 // +3 4 5 6 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// Bulb a and switch Y are not in the same path. +// Switch Y and bulb A are not in the same closed path + +1 Bulb : +2 a : +3 and : +4 switch : +5 Y : +6 are : +7 not : +8 in : +9 the : +10 same : +11 path. : + + +1 Switch : +2 Y : +3 and : +4 bulb : +5 A : +6 are : +7 not : +8 in : +9 the : +10 same : +11 closed : +12 path : + + +1 2 3 4 5 <==> 1 2 3 4 5 // EQUI // 5 // +6 7 <==> 6 7 // EQUI // 5 // +8 9 10 11 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// A chemical reaction inside the battery makes the electrical states of the positive and negative terminals different at all times. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 A : +2 chemical : +3 reaction : +4 inside : +5 the : +6 battery : +7 makes : +8 the : +9 electrical : +10 states : +11 of : +12 the : +13 positive : +14 and : +15 negative : +16 terminals : +17 different : +18 at : +19 all : +20 times. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 3 <==> 4 5 6 // EQUI // 5 // +4 5 6 <==> 1 2 // EQUI // 5 // +8 9 10 <==> 9 10 11 // EQUI // 5 // +11 12 13 14 15 16 <==> 12 13 14 // EQUI // 5 // + + + + + +// becasue the terminals 4,5, and 6 are connected to the positive terminal of the battery +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 becasue : +2 the : +3 terminals : +4 4,5, : +5 and : +6 6 : +7 are : +8 connected : +9 to : +10 the : +11 positive : +12 terminal : +13 of : +14 the : +15 battery : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +2 3 4 5 6 <==> 1 2 3 4 5 // EQUI // 5 // +7 8 <==> 6 7 // EQUI // 5 // +9 10 11 12 13 14 15 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// switch Y does not effect bulb A +// Switch Y and bulb A are not in the same closed path + +1 switch : +2 Y : +3 does : +4 not : +5 effect : +6 bulb : +7 A : + + +1 Switch : +2 Y : +3 and : +4 bulb : +5 A : +6 are : +7 not : +8 in : +9 the : +10 same : +11 closed : +12 path : + + +1 2 <==> 1 2 3 4 5 // EQUI // 5 // + + + + + +// bulb c creates a gap +// If C burns out, then A and B are still in a closed path with the battery. + +1 bulb : +2 c : +3 creates : +4 a : +5 gap : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery. : + + +1 2 <==> 2 // EQUI // 5 // +3 <==> 3 4 // EQUI // 5 // + + + + + +// Bulb C and the battery are not contained in a closed pathway +// Bulb C was no longer in a closed path with the battery + +1 Bulb : +2 C : +3 and : +4 the : +5 battery : +6 are : +7 not : +8 contained : +9 in : +10 a : +11 closed : +12 pathway : + + +1 Bulb : +2 C : +3 was : +4 no : +5 longer : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : + + +1 2 3 4 5 <==> 1 2 // EQUI // 5 // +9 10 11 12 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// the two terminals will both be 0 +// The terminals are in the same state. + +1 the : +2 two : +3 terminals : +4 will : +5 both : +6 be : +7 0 : + + +1 The : +2 terminals : +3 are : +4 in : +5 the : +6 same : +7 state. : + + +1 2 3 <==> 1 2 // EQUI // 5 // +5 <==> 3 // EQUI // 5 // + + + + + +// bulb b is not in the same path with bulbs a and c. +// Bulb B is in a separate path + +1 bulb : +2 b : +3 is : +4 not : +5 in : +6 the : +7 same : +8 path : +9 with : +10 bulbs : +11 a : +12 and : +13 c. : + + +1 Bulb : +2 B : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 // EQUI // 5 // + + + + + +// The electrical state is interferred with. +// A non-zero voltage means that the terminals are not connected. + +1 The : +2 electrical : +3 state : +4 is : +5 interferred : +6 with. : + + +1 A : +2 non-zero : +3 voltage : +4 means : +5 that : +6 the : +7 terminals : +8 are : +9 not : +10 connected. : + + +1 2 3 <==> 1 2 3 // EQUI // 5 // + + + + + +// Because the battery and the bulb are not in a closed path. +// The battery in 4 is not in a closed path + +1 Because : +2 the : +3 battery : +4 and : +5 the : +6 bulb : +7 are : +8 not : +9 in : +10 a : +11 closed : +12 path. : + + +1 The : +2 battery : +3 in : +4 4 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +2 3 4 5 6 <==> 1 2 // EQUI // 5 // +7 8 <==> 5 6 // EQUI // 5 // +9 10 11 12 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// "because by measuring voltage, you find the gap where there""s a difference in electrical states." +// Measuring voltage indicates the place where the electrical state changes due to a gap. + +1 "because : +2 by : +3 measuring : +4 voltage, : +5 you : +6 find : +7 the : +8 gap : +9 where : +10 there""s : +11 a : +12 difference : +13 in : +14 electrical : +15 states." : + + +1 Measuring : +2 voltage : +3 indicates : +4 the : +5 place : +6 where : +7 the : +8 electrical : +9 state : +10 changes : +11 due : +12 to : +13 a : +14 gap. : + + +2 3 <==> 1 // EQUI // 5 // +4 <==> 2 // EQUI // 5 // +7 8 <==> 11 12 13 14 // EQUI // 5 // +9 <==> 4 5 // EQUI // 5 // +10 11 12 <==> 6 // EQUI // 5 // +13 14 15 <==> 7 8 9 // EQUI // 5 // + + + + + +// again, bulbs a and b will be contained on a closed path +// If C burns out, then A and B are still in a closed path. + +1 again, : +2 bulbs : +3 a : +4 and : +5 b : +6 will : +7 be : +8 contained : +9 on : +10 a : +11 closed : +12 path : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path. : + + +2 3 4 5 <==> 6 7 8 // EQUI // 5 // +6 7 8 <==> 5 // EQUI // 5 // +9 10 11 12 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// bulbs b and c are contiained in the the same path with the battery. +// A and C are not in the same path with the battery + +1 bulbs : +2 b : +3 and : +4 c : +5 are : +6 contiained : +7 in : +8 the : +9 the : +10 same : +11 path : +12 with : +13 the : +14 battery. : + + +1 A : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 path : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +12 13 14 <==> 10 11 12 // EQUI // 5 // + + + + + +// There is a gap in the path. +// Terminals 1 and 2 are in the same electrical state + +1 There : +2 is : +3 a : +4 gap : +5 in : +6 the : +7 path. : + + +1 Terminals : +2 1 : +3 and : +4 2 : +5 are : +6 in : +7 the : +8 same : +9 electrical : +10 state : + + +1 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// bulb a is in a closed path with a battery +// Bulb A is still in a closed path with the battery + +1 bulb : +2 a : +3 is : +4 in : +5 a : +6 closed : +7 path : +8 with : +9 a : +10 battery : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 7 <==> 5 6 7 8 // EQUI // 5 // +8 9 10 <==> 9 10 11 // EQUI // 5 // + + + + + +// Bulb A and bulb C affect each other. +// A and C are in the same closed path + +1 Bulb : +2 A : +3 and : +4 bulb : +5 C : +6 affect : +7 each : +8 other. : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 closed : +9 path : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // + + + + + +// switch z is contained in a closed path +// there is a path containing both Z and C + +1 switch : +2 z : +3 is : +4 contained : +5 in : +6 a : +7 closed : +8 path : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 both : +7 Z : +8 and : +9 C : + + +1 2 <==> 7 8 9 // EQUI // 5 // +3 4 <==> 1 // EQUI // 5 // +5 6 7 8 <==> 2 // EQUI // 5 // + + + + + +// the bulb terminal and the negative battery terminal are separated by a gap +// there is no gap between the terminals + +1 the : +2 bulb : +3 terminal : +4 and : +5 the : +6 negative : +7 battery : +8 terminal : +9 are : +10 separated : +11 by : +12 a : +13 gap : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +1 2 3 4 5 6 7 8 <==> 5 6 7 // EQUI // 5 // +11 12 13 <==> 3 4 // EQUI // 5 // + + + + + +// Bulb A and C are still in a closed path with the battery. +// Bulbs A and C are still contained in closed paths with the battery + +1 Bulb : +2 A : +3 and : +4 C : +5 are : +6 still : +7 in : +8 a : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 still : +7 contained : +8 in : +9 closed : +10 paths : +11 with : +12 the : +13 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +5 <==> 5 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 8 9 10 <==> 8 9 10 // EQUI // 5 // +11 12 13 <==> 11 12 13 // EQUI // 5 // + + + + + +// if switch and bulb are contained in the same closed path +// When the switch and the bulb are contained in the same path + +1 if : +2 switch : +3 and : +4 bulb : +5 are : +6 contained : +7 in : +8 the : +9 same : +10 closed : +11 path : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 4 <==> 2 3 4 5 6 // EQUI // 5 // +5 6 <==> 7 8 // EQUI // 5 // +7 8 9 10 11 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// there is a gap between the positive battery connection and the bulb terminal. +// there is no gap between the terminals + +1 there : +2 is : +3 a : +4 gap : +5 between : +6 the : +7 positive : +8 battery : +9 connection : +10 and : +11 the : +12 bulb : +13 terminal. : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +1 <==> 1 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +5 6 7 8 9 10 11 12 13 <==> 5 6 7 // EQUI // 5 // + + + + + +// Bulb A is not on the same path that Bulb B and bulb C are. +// there is a path containing A and a different path containing B and C + +1 Bulb : +2 A : +3 is : +4 not : +5 on : +6 the : +7 same : +8 path : +9 that : +10 Bulb : +11 B : +12 and : +13 bulb : +14 C : +15 are. : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A : +7 and : +8 a : +9 different : +10 path : +11 containing : +12 B : +13 and : +14 C : + + +1 2 <==> 6 // EQUI // 5 // +5 6 7 8 <==> 1 // EQUI // 5 // +10 11 12 13 14 <==> 12 13 14 // EQUI // 5 // +15 <==> 7 // EQUI // 5 // + + + + + +// it runs on a different current +// If C burns out, then A and B are still in a closed path with the battery. + +1 it : +2 runs : +3 on : +4 a : +5 different : +6 current : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery. : + + +1 <==> 1 // EQUI // 5 // +2 <==> 11 12 13 14 // EQUI // 5 // +3 4 5 6 <==> 6 7 8 // EQUI // 5 // + + + + + +// terminal 6 is connected to the difference +// Terminal 6 and the positive terminal are connected + +1 terminal : +2 6 : +3 is : +4 connected : +5 to : +6 the : +7 difference : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// the batteries terminals are not connected +// Circuit 4 has no closed paths + +1 the : +2 batteries : +3 terminals : +4 are : +5 not : +6 connected : + + +1 Circuit : +2 4 : +3 has : +4 no : +5 closed : +6 paths : + + +1 2 3 <==> 1 2 // EQUI // 5 // +4 5 6 <==> 3 4 5 6 // EQUI // 5 // + + + + + +// because if there is a voltage that means there is a gap +// Measuring voltage indicates the place where the electrical state changes due to a gap. + +1 because : +2 if : +3 there : +4 is : +5 a : +6 voltage : +7 that : +8 means : +9 there : +10 is : +11 a : +12 gap : + + +1 Measuring : +2 voltage : +3 indicates : +4 the : +5 place : +6 where : +7 the : +8 electrical : +9 state : +10 changes : +11 due : +12 to : +13 a : +14 gap. : + + +3 <==> 7 8 9 // EQUI // 5 // +5 6 <==> 2 // EQUI // 5 // +9 <==> 11 12 // EQUI // 5 // +11 12 <==> 13 14 // EQUI // 5 // + + + + + +// Find where there are different electrical states +// Measuring voltage indicates the place where the electrical state changes due to a gap. + +1 Find : +2 where : +3 there : +4 are : +5 different : +6 electrical : +7 states : + + +1 Measuring : +2 voltage : +3 indicates : +4 the : +5 place : +6 where : +7 the : +8 electrical : +9 state : +10 changes : +11 due : +12 to : +13 a : +14 gap. : + + +2 <==> 3 // EQUI // 5 // +3 <==> 6 // EQUI // 5 // +5 6 7 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// circuit 2 is connected to the battery +// there is no closed path containing the battery + +1 circuit : +2 2 : +3 is : +4 connected : +5 to : +6 the : +7 battery : + + +1 there : +2 is : +3 no : +4 closed : +5 path : +6 containing : +7 the : +8 battery : + + +5 6 7 <==> 7 8 // EQUI // 5 // + + + + + +// the gap in the circuit causes the circuit to be an open circuit +// there is a gap in a circuit + +1 the : +2 gap : +3 in : +4 the : +5 circuit : +6 causes : +7 the : +8 circuit : +9 to : +10 be : +11 an : +12 open : +13 circuit : + + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 a : +7 circuit : + + +1 2 <==> 3 4 // EQUI // 5 // +3 4 5 <==> 1 // EQUI // 5 // +6 <==> 2 // EQUI // 5 // + + + + + +// there is a gap in the circuit +// Terminal 1 and the positive terminal are separated by the gap + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 the : +7 circuit : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +3 4 <==> 9 10 11 // EQUI // 5 // + + + + + +// the path has to be closed for the bulb to light up +// If a bulb and a switch are in the same path the switch affects the bulb + +1 the : +2 path : +3 has : +4 to : +5 be : +6 closed : +7 for : +8 the : +9 bulb : +10 to : +11 light : +12 up : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 8 9 10 11 // EQUI // 5 // +7 8 9 <==> 2 3 4 5 6 // EQUI // 5 // + + + + + +// There is no gap so there is no difference in voltage +// there is no gap between the terminals + +1 There : +2 is : +3 no : +4 gap : +5 so : +6 there : +7 is : +8 no : +9 difference : +10 in : +11 voltage : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +1 <==> 1 // EQUI // 5 // +2 <==> 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // + + + + + +// Voltage is the difference between a positive and negative end on the battery. +// Terminal 1 and the positive terminal are separated by the gap + +1 Voltage : +2 is : +3 the : +4 difference : +5 between : +6 a : +7 positive : +8 and : +9 negative : +10 end : +11 on : +12 the : +13 battery. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +3 4 <==> 9 10 11 // EQUI // 5 // +5 6 7 8 9 10 11 12 13 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulb had a short circuit +// there is a complete circuit + +1 bulb : +2 had : +3 a : +4 short : +5 circuit : + + +1 there : +2 is : +3 a : +4 complete : +5 circuit : + + +3 4 5 <==> 3 4 5 // EQUI // 5 // + + + + + +// Bulb A and bulb C are in a closed path with the battery. +// Bulb B and Bulb C were still contained in the same closed path with the battery. + +1 Bulb : +2 A : +3 and : +4 bulb : +5 C : +6 are : +7 in : +8 a : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 Bulb : +2 B : +3 and : +4 Bulb : +5 C : +6 were : +7 still : +8 contained : +9 in : +10 the : +11 same : +12 closed : +13 path : +14 with : +15 the : +16 battery. : + + +1 2 3 4 5 <==> 1 2 3 4 5 // EQUI // 5 // +6 <==> 6 7 8 // EQUI // 5 // +7 8 9 10 <==> 9 10 11 12 13 // EQUI // 5 // +11 12 13 <==> 14 15 16 // EQUI // 5 // + + + + + +// Terminals 4, 5, and 6 are only connected to the positive battery terminal. +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 Terminals : +2 4, : +3 5, : +4 and : +5 6 : +6 are : +7 only : +8 connected : +9 to : +10 the : +11 positive : +12 battery : +13 terminal. : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 2 3 4 5 <==> 1 2 3 4 5 // EQUI // 5 // +8 <==> 6 7 // EQUI // 5 // +9 10 11 12 13 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// a terminal is connected to the positive battery terminal +// the terminals are not connected + +1 a : +2 terminal : +3 is : +4 connected : +5 to : +6 the : +7 positive : +8 battery : +9 terminal : + + +1 the : +2 terminals : +3 are : +4 not : +5 connected : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 5 // EQUI // 5 // + + + + + +// because the terminals are in the same state +// terminal 1 is connected to the negative battery terminal + +1 because : +2 the : +3 terminals : +4 are : +5 in : +6 the : +7 same : +8 state : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +2 3 <==> 1 2 // EQUI // 5 // + + + + + +// "because switch y isn""t included in bulb A""s closed path" +// Switch Y and bulb A are not in the same closed path + +1 "because : +2 switch : +3 y : +4 isn""t : +5 included : +6 in : +7 bulb : +8 A""s : +9 closed : +10 path" : + + +1 Switch : +2 Y : +3 and : +4 bulb : +5 A : +6 are : +7 not : +8 in : +9 the : +10 same : +11 closed : +12 path : + + +2 3 <==> 1 2 3 4 5 // EQUI // 5 // +4 5 <==> 6 7 // EQUI // 5 // +9 10 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// the negative battery terminal is seperated by a gap from terminal 6 +// terminal 6 is separated by a gap from the negative battery terminal + +1 the : +2 negative : +3 battery : +4 terminal : +5 is : +6 seperated : +7 by : +8 a : +9 gap : +10 from : +11 terminal : +12 6 : + + +1 terminal : +2 6 : +3 is : +4 separated : +5 by : +6 a : +7 gap : +8 from : +9 the : +10 negative : +11 battery : +12 terminal : + + +1 2 3 4 <==> 8 9 10 11 12 // EQUI // 5 // +7 8 9 <==> 5 6 7 // EQUI // 5 // +10 11 12 <==> 1 2 // EQUI // 5 // + + + + + +// that the bulb terminal is only connected to one of the battery terminals +// there is no gap between the terminals + +1 that : +2 the : +3 bulb : +4 terminal : +5 is : +6 only : +7 connected : +8 to : +9 one : +10 of : +11 the : +12 battery : +13 terminals : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +5 <==> 1 // EQUI // 5 // +8 9 10 11 12 13 <==> 5 6 7 // EQUI // 5 // + + + + + +// there was a negavtive gap +// terminal 4 is separated by a gap from the negative battery terminal + +1 there : +2 was : +3 a : +4 negavtive : +5 gap : + + +1 terminal : +2 4 : +3 is : +4 separated : +5 by : +6 a : +7 gap : +8 from : +9 the : +10 negative : +11 battery : +12 terminal : + + +3 4 5 <==> 5 6 7 // EQUI // 5 // + + + + + +// terminal is connected to postive end of battery +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 terminal : +2 is : +3 connected : +4 to : +5 postive : +6 end : +7 of : +8 battery : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 <==> 1 2 3 4 5 // EQUI // 5 // +2 3 <==> 6 7 // EQUI // 5 // +4 5 6 7 8 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// terminal 1 is connected to the 1.5 volt battery. +// terminal 1 is connected to the negative battery terminal + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 1.5 : +8 volt : +9 battery. : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // + + + + + +// The path must be closed +// If a bulb and a switch are in the same path the switch affects the bulb + +1 The : +2 path : +3 must : +4 be : +5 closed : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 8 9 10 11 // EQUI // 5 // + + + + + +// Bulbs B and C are contained on the same path with the battery. +// B and C are in the same path with the battery + +1 Bulbs : +2 B : +3 and : +4 C : +5 are : +6 contained : +7 on : +8 the : +9 same : +10 path : +11 with : +12 the : +13 battery. : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : +9 with : +10 the : +11 battery : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +7 8 9 10 <==> 5 6 7 8 // EQUI // 5 // +11 12 13 <==> 9 10 11 // EQUI // 5 // + + + + + +// a terminal is connected to the positive terminal of the battery +// Terminal 6 and the positive terminal are connected + +1 a : +2 terminal : +3 is : +4 connected : +5 to : +6 the : +7 positive : +8 terminal : +9 of : +10 the : +11 battery : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// because a and b are in series and a and c are in parallel +// If C burns out, then A and B are still in a closed path. + +1 because : +2 a : +3 and : +4 b : +5 are : +6 in : +7 series : +8 and : +9 a : +10 and : +11 c : +12 are : +13 in : +14 parallel : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path. : + + +2 3 4 <==> 6 7 8 // EQUI // 5 // +9 10 11 <==> 2 // EQUI // 5 // +12 <==> 9 // EQUI // 5 // + + + + + +// a terminal is connected to the positive terminal of the battery +// Terminal 5 and the positive terminal are connected + +1 a : +2 terminal : +3 is : +4 connected : +5 to : +6 the : +7 positive : +8 terminal : +9 of : +10 the : +11 battery : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 <==> 1 2 3 4 5 6 // EQUI // 5 // +3 4 <==> 7 8 // EQUI // 5 // + + + + + +// the bulb is not contained in the path +// The bulb is not in the closed path containing the battery + +1 the : +2 bulb : +3 is : +4 not : +5 contained : +6 in : +7 the : +8 path : + + +1 The : +2 bulb : +3 is : +4 not : +5 in : +6 the : +7 closed : +8 path : +9 containing : +10 the : +11 battery : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 5 <==> 3 4 // EQUI // 5 // + + + + + +// because positive charge is before gap +// Terminal 1 and the positive terminal are separated by the gap + +1 because : +2 positive : +3 charge : +4 is : +5 before : +6 gap : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // +6 <==> 9 10 11 // EQUI // 5 // + + + + + +// Because it is not on the same path +// If bulb A burns out, bulbs B and C are still in a closed path + +1 Because : +2 it : +3 is : +4 not : +5 on : +6 the : +7 same : +8 path : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 bulbs : +7 B : +8 and : +9 C : +10 are : +11 still : +12 in : +13 a : +14 closed : +15 path : + + +1 <==> 11 // EQUI // 5 // +5 6 7 8 <==> 12 13 14 15 // EQUI // 5 // + + + + + +// Seperate paths connected to the battery +// If bulb A burns out, B and C are no longer in a closed path with the battery + +1 Seperate : +2 paths : +3 connected : +4 to : +5 the : +6 battery : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 B : +7 and : +8 C : +9 are : +10 no : +11 longer : +12 in : +13 a : +14 closed : +15 path : +16 with : +17 the : +18 battery : + + +3 <==> 12 13 14 15 // EQUI // 5 // +4 5 6 <==> 16 17 18 // EQUI // 5 // + + + + + +// A red X means the battery is in a short circuit. +// there is a short circuit + +1 A : +2 red : +3 X : +4 means : +5 the : +6 battery : +7 is : +8 in : +9 a : +10 short : +11 circuit. : + + +1 there : +2 is : +3 a : +4 short : +5 circuit : + + +4 <==> 2 // EQUI // 5 // +8 9 10 11 <==> 3 4 5 // EQUI // 5 // + + + + + +// The battery is not closed in a closed path. +// Circuit 4 has no closed paths + +1 The : +2 battery : +3 is : +4 not : +5 closed : +6 in : +7 a : +8 closed : +9 path. : + + +1 Circuit : +2 4 : +3 has : +4 no : +5 closed : +6 paths : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 5 <==> 3 // EQUI // 5 // +6 7 8 9 <==> 4 5 6 // EQUI // 5 // + + + + + +// terminal is connected to the battery +// Terminals 1, 2 and 3 are connected to the negative battery terminal + +1 terminal : +2 is : +3 connected : +4 to : +5 the : +6 battery : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 connected : +8 to : +9 the : +10 negative : +11 battery : +12 terminal : + + +1 <==> 1 2 3 4 5 // EQUI // 5 // +2 3 <==> 6 7 // EQUI // 5 // +4 5 6 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// Bulb A and Bulb C are not contained in the same closed path +// A and C are not in the same path + +1 Bulb : +2 A : +3 and : +4 Bulb : +5 C : +6 are : +7 not : +8 contained : +9 in : +10 the : +11 same : +12 closed : +13 path : + + +1 A : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 path : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +6 7 8 <==> 4 5 // EQUI // 5 // +9 10 11 12 13 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// bulbs A and C are not on the same closed path. +// A and C are not in the same path + +1 bulbs : +2 A : +3 and : +4 C : +5 are : +6 not : +7 on : +8 the : +9 same : +10 closed : +11 path. : + + +1 A : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 path : + + +1 2 3 4 <==> 1 2 3 // EQUI // 5 // +5 6 <==> 4 5 // EQUI // 5 // +7 8 9 10 11 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// bulb, battery, and switch are in closed path +// When the switch and the bulb are contained in the same path + +1 bulb, : +2 battery, : +3 and : +4 switch : +5 are : +6 in : +7 closed : +8 path : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 2 3 4 <==> 2 3 4 5 6 // EQUI // 5 // +5 <==> 7 8 // EQUI // 5 // + + + + + +// the paths of the circuit are no longer complete +// there is an incomplete circuit + +1 the : +2 paths : +3 of : +4 the : +5 circuit : +6 are : +7 no : +8 longer : +9 complete : + + +1 there : +2 is : +3 an : +4 incomplete : +5 circuit : + + +1 2 3 4 5 <==> 3 4 5 // EQUI // 5 // + + + + + +// there is no closed path in circuit 4. +// Circuit 4 has no closed paths + +1 there : +2 is : +3 no : +4 closed : +5 path : +6 in : +7 circuit : +8 4. : + + +1 Circuit : +2 4 : +3 has : +4 no : +5 closed : +6 paths : + + +2 <==> 3 // EQUI // 5 // +3 4 5 <==> 4 5 6 // EQUI // 5 // +6 7 8 <==> 1 2 // EQUI // 5 // + + + + + +// The battery keeps a chemical reaction reaction. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 The : +2 battery : +3 keeps : +4 a : +5 chemical : +6 reaction : +7 reaction. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 7 8 // EQUI // 5 // +4 5 6 7 <==> 4 5 6 // EQUI // 5 // + + + + + +// There is always a difference in voltage between two battery terminals. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 There : +2 is : +3 always : +4 a : +5 difference : +6 in : +7 voltage : +8 between : +9 two : +10 battery : +11 terminals. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +4 5 6 7 <==> 9 10 11 // EQUI // 5 // +8 9 10 11 <==> 12 13 14 // EQUI // 5 // + + + + + +// terminal 1is connected to terminal 4 +// Terminals 1 and 4 are connected + +1 terminal : +2 1is : +3 connected : +4 to : +5 terminal : +6 4 : + + +1 Terminals : +2 1 : +3 and : +4 4 : +5 are : +6 connected : + + +3 <==> 5 6 // EQUI // 5 // +4 5 6 <==> 1 2 3 4 // EQUI // 5 // + + + + + +// Bulb A and B will still be in a contained path. +// If C burns out, then A and B are still in a closed path. + +1 Bulb : +2 A : +3 and : +4 B : +5 will : +6 still : +7 be : +8 in : +9 a : +10 contained : +11 path. : + + +1 If : +2 C : +3 burns : +4 out, : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path. : + + +1 2 3 4 <==> 6 7 8 // EQUI // 5 // +6 <==> 10 // EQUI // 5 // +7 <==> 9 // EQUI // 5 // +8 9 10 11 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// bulb a is in a closed circuit with the battery without the y switch. +// Bulb A is still in a closed path with the battery + +1 bulb : +2 a : +3 is : +4 in : +5 a : +6 closed : +7 circuit : +8 with : +9 the : +10 battery : +11 without : +12 the : +13 y : +14 switch. : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 7 <==> 5 6 7 8 // EQUI // 5 // +8 9 10 <==> 9 10 11 // EQUI // 5 // + + + + + +// different paths with the battery +// B and C are in the same path with the battery + +1 different : +2 paths : +3 with : +4 the : +5 battery : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : +9 with : +10 the : +11 battery : + + +1 2 <==> 5 6 7 8 // EQUI // 5 // +3 4 5 <==> 9 10 11 // EQUI // 5 // + + + + + +// "The electrical state at the terminal matches the battery""s electrical state" +// terminal 1 is connected to the negative battery terminal + +1 "The : +2 electrical : +3 state : +4 at : +5 the : +6 terminal : +7 matches : +8 the : +9 battery""s : +10 electrical : +11 state" : + + +1 terminal : +2 1 : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +4 5 6 <==> 1 2 // EQUI // 5 // +7 <==> 3 4 // EQUI // 5 // +8 9 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// Circuit 2 is not a short circuit because the battery is not in a closed path with itself. +// The battery in 2 is not in a closed path + +1 Circuit : +2 2 : +3 is : +4 not : +5 a : +6 short : +7 circuit : +8 because : +9 the : +10 battery : +11 is : +12 not : +13 in : +14 a : +15 closed : +16 path : +17 with : +18 itself. : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 2 <==> 3 4 // EQUI // 5 // +9 10 <==> 1 2 // EQUI // 5 // +11 12 <==> 5 6 // EQUI // 5 // +13 14 15 16 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// Bulb A is on a closed circut path +// Bulb A was still contained in the same closed path with the battery. + +1 Bulb : +2 A : +3 is : +4 on : +5 a : +6 closed : +7 circut : +8 path : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +4 5 6 7 8 <==> 6 7 8 9 10 // EQUI // 5 // + + + + + +// Bulb B and bulb C are contained in different paths with the battery +// B and C are in the same path with the battery + +1 Bulb : +2 B : +3 and : +4 bulb : +5 C : +6 are : +7 contained : +8 in : +9 different : +10 paths : +11 with : +12 the : +13 battery : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : +9 with : +10 the : +11 battery : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +8 9 10 <==> 4 // EQUI // 5 // +11 12 13 <==> 9 10 11 // EQUI // 5 // + + + + + +// the battery always has a voltage because there is a positive terminal and there is a negative terminal. +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 the : +2 battery : +3 always : +4 has : +5 a : +6 voltage : +7 because : +8 there : +9 is : +10 a : +11 positive : +12 terminal : +13 and : +14 there : +15 is : +16 a : +17 negative : +18 terminal. : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 <==> 1 2 // EQUI // 5 // +8 <==> 7 8 // EQUI // 5 // +14 <==> 9 10 11 // EQUI // 5 // +16 17 18 <==> 12 13 14 // EQUI // 5 // + + + + + +// gap between 3 and positive battery +// Terminal 3 and the positive terminal are separated by the gap + +1 gap : +2 between : +3 3 : +4 and : +5 positive : +6 battery : + + +1 Terminal : +2 3 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 <==> 9 10 11 // EQUI // 5 // +2 3 4 5 6 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// because bulbs A and C are contained in different paths with the battery +// A and C are in different paths with the battery + +1 because : +2 bulbs : +3 A : +4 and : +5 C : +6 are : +7 contained : +8 in : +9 different : +10 paths : +11 with : +12 the : +13 battery : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : +8 with : +9 the : +10 battery : + + +2 3 4 5 <==> 1 2 3 // EQUI // 5 // +8 9 10 <==> 5 6 7 // EQUI // 5 // +11 12 13 <==> 8 9 10 // EQUI // 5 // + + + + + +// because of the gap at bulb b +// Terminals 1, 2 and 3 are separated from the positive battery terminal by a gap + +1 because : +2 of : +3 the : +4 gap : +5 at : +6 bulb : +7 b : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 separated : +8 from : +9 the : +10 positive : +11 battery : +12 terminal : +13 by : +14 a : +15 gap : + + +1 2 3 4 <==> 13 14 15 // EQUI // 5 // + + + + + +// because bulb c was in an open path +// Bulb C was not in a closed path + +1 because : +2 bulb : +3 c : +4 was : +5 in : +6 an : +7 open : +8 path : + + +1 Bulb : +2 C : +3 was : +4 not : +5 in : +6 a : +7 closed : +8 path : + + +2 3 <==> 1 2 // EQUI // 5 // +4 <==> 3 4 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// It is not a closed path. +// the path is not closed + +1 It : +2 is : +3 not : +4 a : +5 closed : +6 path. : + + +1 the : +2 path : +3 is : +4 not : +5 closed : + + +3 <==> 3 4 // EQUI // 5 // +4 5 6 <==> 5 // EQUI // 5 // + + + + + +// because switch y is not conatined in the closed path of bulb a and the battery. +// Bulb A is still in a closed path with the battery + +1 because : +2 switch : +3 y : +4 is : +5 not : +6 conatined : +7 in : +8 the : +9 closed : +10 path : +11 of : +12 bulb : +13 a : +14 and : +15 the : +16 battery. : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 <==> 4 // EQUI // 5 // +7 8 9 10 <==> 5 6 7 8 // EQUI // 5 // +11 12 13 14 15 16 <==> 1 2 // EQUI // 5 // + + + + + +// A terminal is not connected to the negative battery terminal. +// Terminals 1 and 6 are not connected + +1 A : +2 terminal : +3 is : +4 not : +5 connected : +6 to : +7 the : +8 negative : +9 battery : +10 terminal. : + + +1 Terminals : +2 1 : +3 and : +4 6 : +5 are : +6 not : +7 connected : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +3 4 5 <==> 5 6 7 // EQUI // 5 // + + + + + +// bulb B and C both still are on a closed path with the battery +// bulbs B and C are still in closed paths with the battery + +1 bulb : +2 B : +3 and : +4 C : +5 both : +6 still : +7 are : +8 on : +9 a : +10 closed : +11 path : +12 with : +13 the : +14 battery : + + +1 bulbs : +2 B : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 <==> 5 // EQUI // 5 // +8 9 10 11 <==> 7 8 9 // EQUI // 5 // +12 13 14 <==> 10 11 12 // EQUI // 5 // + + + + + +// terminal 1 and terminal 6 are seperated by a gap +// Terminals 1 and 6 are separated by the gap + +1 terminal : +2 1 : +3 and : +4 terminal : +5 6 : +6 are : +7 seperated : +8 by : +9 a : +10 gap : + + +1 Terminals : +2 1 : +3 and : +4 6 : +5 are : +6 separated : +7 by : +8 the : +9 gap : + + +1 2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 7 <==> 5 6 // EQUI // 5 // +8 9 10 <==> 7 8 9 // EQUI // 5 // + + + + + +// because the battery is in a closed path. +// the battery is contained in a closed path in which there is no bulb + +1 because : +2 the : +3 battery : +4 is : +5 in : +6 a : +7 closed : +8 path. : + + +1 the : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 closed : +8 path : +9 in : +10 which : +11 there : +12 is : +13 no : +14 bulb : + + +2 3 <==> 1 2 // EQUI // 5 // +4 <==> 3 4 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// complete path including a battery and a bulb +// there is a closed path containing both the bulb and a battery + +1 complete : +2 path : +3 including : +4 a : +5 battery : +6 and : +7 a : +8 bulb : + + +1 there : +2 is : +3 a : +4 closed : +5 path : +6 containing : +7 both : +8 the : +9 bulb : +10 and : +11 a : +12 battery : + + +1 2 <==> 3 4 5 // EQUI // 5 // +3 <==> 6 // EQUI // 5 // +4 5 6 7 8 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// bulbs b and c creat a gap in the path +// Bulb B is in a separate path + +1 bulbs : +2 b : +3 and : +4 c : +5 creat : +6 a : +7 gap : +8 in : +9 the : +10 path : + + +1 Bulb : +2 B : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +1 2 3 4 <==> 1 2 // EQUI // 5 // +5 <==> 3 // EQUI // 5 // +8 9 10 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// the positive battery terminal and terminal 5 are connected +// Terminal 5 and the positive terminal are connected + +1 the : +2 positive : +3 battery : +4 terminal : +5 and : +6 terminal : +7 5 : +8 are : +9 connected : + + +1 Terminal : +2 5 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 connected : + + +1 2 3 4 5 6 7 <==> 1 2 3 4 5 6 // EQUI // 5 // +8 9 <==> 7 8 // EQUI // 5 // + + + + + +// the the bulb terminal disconnected from the battery terminal +// the terminals are not connected + +1 the : +2 the : +3 bulb : +4 terminal : +5 disconnected : +6 from : +7 the : +8 battery : +9 terminal : + + +1 the : +2 terminals : +3 are : +4 not : +5 connected : + + +6 7 8 9 <==> 1 2 // EQUI // 5 // + + + + + +// the battery is contained in the circuit and the light bulb is not +// the battery is contained in a path in which there is no bulb + +1 the : +2 battery : +3 is : +4 contained : +5 in : +6 the : +7 circuit : +8 and : +9 the : +10 light : +11 bulb : +12 is : +13 not : + + +1 the : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 path : +8 in : +9 which : +10 there : +11 is : +12 no : +13 bulb : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +9 10 11 <==> 12 13 // EQUI // 5 // +12 13 <==> 11 // EQUI // 5 // + + + + + +// because the two ends of the battery do not connect to one another +// the battery is in an open path + +1 because : +2 the : +3 two : +4 ends : +5 of : +6 the : +7 battery : +8 do : +9 not : +10 connect : +11 to : +12 one : +13 another : + + +1 the : +2 battery : +3 is : +4 in : +5 an : +6 open : +7 path : + + +5 6 7 <==> 1 2 // EQUI // 5 // + + + + + +// When a switch is open the circuit is no longer complete +// there is an incomplete circuit + +1 When : +2 a : +3 switch : +4 is : +5 open : +6 the : +7 circuit : +8 is : +9 no : +10 longer : +11 complete : + + +1 there : +2 is : +3 an : +4 incomplete : +5 circuit : + + +4 <==> 2 // EQUI // 5 // +5 <==> 1 // EQUI // 5 // + + + + + +// if both bulbs are contained within a closed path +// The damaged bulb and the other bulb must be contained in the same path + +1 if : +2 both : +3 bulbs : +4 are : +5 contained : +6 within : +7 a : +8 closed : +9 path : + + +1 The : +2 damaged : +3 bulb : +4 and : +5 the : +6 other : +7 bulb : +8 must : +9 be : +10 contained : +11 in : +12 the : +13 same : +14 path : + + +2 3 <==> 1 2 3 4 5 6 7 // EQUI // 5 // +4 5 <==> 8 9 10 // EQUI // 5 // +6 7 8 9 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// The bulb is in a closed circuit and the battery exists in that circuit +// The battery in 2 is not in a closed path + +1 The : +2 bulb : +3 is : +4 in : +5 a : +6 closed : +7 circuit : +8 and : +9 the : +10 battery : +11 exists : +12 in : +13 that : +14 circuit : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +11 <==> 5 6 // EQUI // 5 // + + + + + +// the closed path is connected to the light bulb +// Bulb A was still contained in the same closed path with the battery. + +1 the : +2 closed : +3 path : +4 is : +5 connected : +6 to : +7 the : +8 light : +9 bulb : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 3 <==> 6 7 8 9 10 // EQUI // 5 // +6 7 8 9 <==> 1 2 // EQUI // 5 // + + + + + +// the electrical states between the terminals is the same, resulting in 0 +// The terminals are in the same state. + +1 the : +2 electrical : +3 states : +4 between : +5 the : +6 terminals : +7 is : +8 the : +9 same, : +10 resulting : +11 in : +12 0 : + + +1 The : +2 terminals : +3 are : +4 in : +5 the : +6 same : +7 state. : + + +4 5 6 <==> 1 2 // EQUI // 5 // +7 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// bulb b and bulb c are contained within a closed path +// B and C are in the same path with the battery + +1 bulb : +2 b : +3 and : +4 bulb : +5 c : +6 are : +7 contained : +8 within : +9 a : +10 closed : +11 path : + + +1 B : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : +9 with : +10 the : +11 battery : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +6 7 <==> 4 // EQUI // 5 // +8 9 10 11 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// circuit 5 is in a closed path. +// the battery is contained in a closed path in which there is no bulb + +1 circuit : +2 5 : +3 is : +4 in : +5 a : +6 closed : +7 path. : + + +1 the : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 closed : +8 path : +9 in : +10 which : +11 there : +12 is : +13 no : +14 bulb : + + +4 5 6 7 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// terminal 6 is connected to terminal 1 +// Terminals 1 and 6 are separated by the gap + +1 terminal : +2 6 : +3 is : +4 connected : +5 to : +6 terminal : +7 1 : + + +1 Terminals : +2 1 : +3 and : +4 6 : +5 are : +6 separated : +7 by : +8 the : +9 gap : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +3 4 <==> 7 8 9 // EQUI // 5 // + + + + + +// If bulb B is damaged there is a gap in the circuit +// there is a gap in a circuit + +1 If : +2 bulb : +3 B : +4 is : +5 damaged : +6 there : +7 is : +8 a : +9 gap : +10 in : +11 the : +12 circuit : + + +1 there : +2 is : +3 a : +4 gap : +5 in : +6 a : +7 circuit : + + +8 9 <==> 3 4 // EQUI // 5 // +10 11 12 <==> 5 6 7 // EQUI // 5 // + + + + + +// bulb a is in a complete circuit with the battery when switch z is closed. +// Bulb A is still contained in a closed path with the battery and switch Z. + +1 bulb : +2 a : +3 is : +4 in : +5 a : +6 complete : +7 circuit : +8 with : +9 the : +10 battery : +11 when : +12 switch : +13 z : +14 is : +15 closed. : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 Z. : + + +1 2 <==> 1 2 // EQUI // 5 // +12 13 <==> 10 11 12 13 14 15 // EQUI // 5 // +14 15 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// bulb a is on a closed path with the battery +// Bulb A is still in a closed path with the battery + +1 bulb : +2 a : +3 is : +4 on : +5 a : +6 closed : +7 path : +8 with : +9 the : +10 battery : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 2 <==> 1 2 // EQUI // 5 // +3 <==> 3 // EQUI // 5 // +4 5 6 7 <==> 5 6 7 8 // EQUI // 5 // +8 9 10 <==> 9 10 11 // EQUI // 5 // + + + + + +// because those terminals are connected to the positive terminal of the battery. +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 because : +2 those : +3 terminals : +4 are : +5 connected : +6 to : +7 the : +8 positive : +9 terminal : +10 of : +11 the : +12 battery. : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +2 3 <==> 1 2 3 4 5 // EQUI // 5 // +4 5 <==> 6 7 // EQUI // 5 // +6 7 8 9 10 11 12 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// Not contained in a closed path +// Bulb C was not in a closed path + +1 Not : +2 contained : +3 in : +4 a : +5 closed : +6 path : + + +1 Bulb : +2 C : +3 was : +4 not : +5 in : +6 a : +7 closed : +8 path : + + +1 2 <==> 3 4 // EQUI // 5 // +3 4 5 6 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// terminal connected to positive charge +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 terminal : +2 connected : +3 to : +4 positive : +5 charge : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 <==> 1 2 3 4 5 // EQUI // 5 // +2 <==> 6 7 // EQUI // 5 // +3 4 5 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// because voltage measures the difference between two points +// Terminal 1 and the positive terminal are separated by the gap + +1 because : +2 voltage : +3 measures : +4 the : +5 difference : +6 between : +7 two : +8 points : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +4 5 6 7 8 <==> 7 8 // EQUI // 5 // + + + + + +// Bulbs a and c are in separate paths. +// A, B and C are in different paths + +1 Bulbs : +2 a : +3 and : +4 c : +5 are : +6 in : +7 separate : +8 paths. : + + +1 A, : +2 B : +3 and : +4 C : +5 are : +6 in : +7 different : +8 paths : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +6 7 8 <==> 6 7 8 // EQUI // 5 // + + + + + +// terminal 6 is connected to postive terminal of battery +// Terminals 1 and 6 are not connected + +1 terminal : +2 6 : +3 is : +4 connected : +5 to : +6 postive : +7 terminal : +8 of : +9 battery : + + +1 Terminals : +2 1 : +3 and : +4 6 : +5 are : +6 not : +7 connected : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +3 4 <==> 5 6 7 // EQUI // 5 // + + + + + +// a terminal is connected to the negative battery terminal +// the terminals are not connected + +1 a : +2 terminal : +3 is : +4 connected : +5 to : +6 the : +7 negative : +8 battery : +9 terminal : + + +1 the : +2 terminals : +3 are : +4 not : +5 connected : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 5 // EQUI // 5 // + + + + + +// Switch Z is in the same path as bulb A +// Bulb A is still contained in a closed path with the battery and switch Z. + +1 Switch : +2 Z : +3 is : +4 in : +5 the : +6 same : +7 path : +8 as : +9 bulb : +10 A : + + +1 Bulb : +2 A : +3 is : +4 still : +5 contained : +6 in : +7 a : +8 closed : +9 path : +10 with : +11 the : +12 battery : +13 and : +14 switch : +15 Z. : + + +1 2 <==> 10 11 12 13 14 15 // EQUI // 5 // +9 10 <==> 1 2 // EQUI // 5 // + + + + + +// there will be a gap +// If bulb A burns out, neither B nor C is in a closed path + +1 there : +2 will : +3 be : +4 a : +5 gap : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +2 3 <==> 1 // EQUI // 5 // +4 5 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// because each bulb has its own complete path +// each bulb is in its own path + +1 because : +2 each : +3 bulb : +4 has : +5 its : +6 own : +7 complete : +8 path : + + +1 each : +2 bulb : +3 is : +4 in : +5 its : +6 own : +7 path : + + +1 <==> 3 // EQUI // 5 // +2 3 <==> 1 2 // EQUI // 5 // +5 6 7 8 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// bulbs b and c have separate paths within the closed circuit +// If bulb A burns out, B and C are no longer in a closed path with the battery + +1 bulbs : +2 b : +3 and : +4 c : +5 have : +6 separate : +7 paths : +8 within : +9 the : +10 closed : +11 circuit : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 B : +7 and : +8 C : +9 are : +10 no : +11 longer : +12 in : +13 a : +14 closed : +15 path : +16 with : +17 the : +18 battery : + + +1 2 3 4 <==> 6 7 8 // EQUI // 5 // +5 <==> 9 // EQUI // 5 // + + + + + +// A terminal is connected to a bulb. +// Terminals 1, 2 and 3 are separated from the positive battery terminal by a gap + +1 A : +2 terminal : +3 is : +4 connected : +5 to : +6 a : +7 bulb. : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 separated : +8 from : +9 the : +10 positive : +11 battery : +12 terminal : +13 by : +14 a : +15 gap : + + +1 2 <==> 1 2 3 4 5 // EQUI // 5 // +3 4 <==> 6 7 // EQUI // 5 // + + + + + +// the positive battery terminal has no gaps from terminal 4 +// Terminal 4 and the positive terminal are not separated by the gap + +1 the : +2 positive : +3 battery : +4 terminal : +5 has : +6 no : +7 gaps : +8 from : +9 terminal : +10 4 : + + +1 Terminal : +2 4 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +5 6 7 <==> 7 8 9 10 11 12 // EQUI // 5 // +8 9 10 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// when a switch and bulb are whithin a closed path +// When the switch and the bulb are contained in the same path + +1 when : +2 a : +3 switch : +4 and : +5 bulb : +6 are : +7 whithin : +8 a : +9 closed : +10 path : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 4 5 <==> 2 3 4 5 6 // EQUI // 5 // + + + + + +// because the path is short +// the path is not closed + +1 because : +2 the : +3 path : +4 is : +5 short : + + +1 the : +2 path : +3 is : +4 not : +5 closed : + + +2 3 <==> 1 2 // EQUI // 5 // + + + + + +// Bulb A will no longer be completing the circuts. +// If bulb A burns out, neither B nor C is in a closed path + +1 Bulb : +2 A : +3 will : +4 no : +5 longer : +6 be : +7 completing : +8 the : +9 circuts. : + + +1 If : +2 bulb : +3 A : +4 burns : +5 out, : +6 neither : +7 B : +8 nor : +9 C : +10 is : +11 in : +12 a : +13 closed : +14 path : + + +1 2 <==> 2 3 // EQUI // 5 // +4 5 <==> 4 5 // EQUI // 5 // +6 7 <==> 11 12 13 14 // EQUI // 5 // + + + + + +// Bulb C will create a gap in the path +// each bulb is in its own path + +1 Bulb : +2 C : +3 will : +4 create : +5 a : +6 gap : +7 in : +8 the : +9 path : + + +1 each : +2 bulb : +3 is : +4 in : +5 its : +6 own : +7 path : + + +1 2 <==> 1 2 // EQUI // 5 // +7 8 9 <==> 4 5 6 7 // EQUI // 5 // + + + + + +// bulb a was contained on a closed path with the battery +// Bulb A was still contained in the same closed path with the battery. + +1 bulb : +2 a : +3 was : +4 contained : +5 on : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +1 Bulb : +2 A : +3 was : +4 still : +5 contained : +6 in : +7 the : +8 same : +9 closed : +10 path : +11 with : +12 the : +13 battery. : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 5 // EQUI // 5 // +5 6 7 8 <==> 6 7 8 9 10 // EQUI // 5 // +9 10 11 <==> 11 12 13 // EQUI // 5 // + + + + + +// Terminal 1 is connected to terminl 4. +// Terminals 1 and 4 are connected + +1 Terminal : +2 1 : +3 is : +4 connected : +5 to : +6 terminl : +7 4. : + + +1 Terminals : +2 1 : +3 and : +4 4 : +5 are : +6 connected : + + +1 2 <==> 1 2 3 4 // EQUI // 5 // +3 4 <==> 5 6 // EQUI // 5 // + + + + + +// Bulbs A and B are not on the same path as Bulb C. +// Bulb C is in a separate path + +1 Bulbs : +2 A : +3 and : +4 B : +5 are : +6 not : +7 on : +8 the : +9 same : +10 path : +11 as : +12 Bulb : +13 C. : + + +1 Bulb : +2 C : +3 is : +4 in : +5 a : +6 separate : +7 path : + + +5 6 <==> 3 // EQUI // 5 // +11 <==> 4 5 6 7 // EQUI // 5 // +12 13 <==> 1 2 // EQUI // 5 // + + + + + +// Each circuit must have a connection. +// there is a complete circuit + +1 Each : +2 circuit : +3 must : +4 have : +5 a : +6 connection. : + + +1 there : +2 is : +3 a : +4 complete : +5 circuit : + + +1 2 <==> 3 4 5 // EQUI // 5 // +3 4 <==> 2 // EQUI // 5 // + + + + + +// A switch contained in a closed path with a bulb and a battery will affect the bulb. +// If a bulb and a switch are in the same path the switch affects the bulb + +1 A : +2 switch : +3 contained : +4 in : +5 a : +6 closed : +7 path : +8 with : +9 a : +10 bulb : +11 and : +12 a : +13 battery : +14 will : +15 affect : +16 the : +17 bulb. : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 2 <==> 2 3 4 5 6 // EQUI // 5 // +4 5 6 7 <==> 8 9 10 11 // EQUI // 5 // +14 15 <==> 14 // EQUI // 5 // +16 17 <==> 15 16 // EQUI // 5 // + + + + + +// Voltage is the difference between a positive and negative terminal on the battery. +// Terminal 1 and the positive terminal are separated by the gap + +1 Voltage : +2 is : +3 the : +4 difference : +5 between : +6 a : +7 positive : +8 and : +9 negative : +10 terminal : +11 on : +12 the : +13 battery. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +3 4 <==> 9 10 11 // EQUI // 5 // +5 6 7 8 9 10 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulbs b and c were in a closed paty with the battery. +// Bulb B and Bulb C were still contained in the same closed path with the battery. + +1 bulbs : +2 b : +3 and : +4 c : +5 were : +6 in : +7 a : +8 closed : +9 paty : +10 with : +11 the : +12 battery. : + + +1 Bulb : +2 B : +3 and : +4 Bulb : +5 C : +6 were : +7 still : +8 contained : +9 in : +10 the : +11 same : +12 closed : +13 path : +14 with : +15 the : +16 battery. : + + +1 2 3 4 <==> 1 2 3 4 5 // EQUI // 5 // +5 <==> 6 // EQUI // 5 // +10 11 12 <==> 14 15 16 // EQUI // 5 // + + + + + +// can complete the path by having z be closed +// there is a path containing A, C, Z and X + +1 can : +2 complete : +3 the : +4 path : +5 by : +6 having : +7 z : +8 be : +9 closed : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A, : +7 C, : +8 Z : +9 and : +10 X : + + +1 <==> 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +7 <==> 6 7 8 9 10 // EQUI // 5 // + + + + + +// A switch will affect a bulb it the bulb and the switch are in the path as the battery +// When the switch and the bulb are contained in the same path + +1 A : +2 switch : +3 will : +4 affect : +5 a : +6 bulb : +7 it : +8 the : +9 bulb : +10 and : +11 the : +12 switch : +13 are : +14 in : +15 the : +16 path : +17 as : +18 the : +19 battery : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 2 <==> 2 3 4 5 6 // EQUI // 5 // +13 <==> 7 8 // EQUI // 5 // +14 15 16 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// the positive battery terminal is not connected +// There is no gap between terminal 6 and the positive terminal + +1 the : +2 positive : +3 battery : +4 terminal : +5 is : +6 not : +7 connected : + + +1 There : +2 is : +3 no : +4 gap : +5 between : +6 terminal : +7 6 : +8 and : +9 the : +10 positive : +11 terminal : + + +1 2 3 4 <==> 5 6 7 8 9 10 11 // EQUI // 5 // + + + + + +// Bulb A and bulb C are still on a closed path that contains the battery. +// Bulbs A and C are still in closed paths with the battery + +1 Bulb : +2 A : +3 and : +4 bulb : +5 C : +6 are : +7 still : +8 on : +9 a : +10 closed : +11 path : +12 that : +13 contains : +14 the : +15 battery. : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : +10 with : +11 the : +12 battery : + + +1 2 3 4 5 <==> 1 2 3 4 // EQUI // 5 // +6 <==> 5 // EQUI // 5 // +7 <==> 6 // EQUI // 5 // +8 9 10 11 <==> 7 8 9 // EQUI // 5 // +13 14 15 <==> 10 11 12 // EQUI // 5 // + + + + + +// Bulbs A and C will still be on their own completed circuts. +// Bulbs A and C are in a closed path + +1 Bulbs : +2 A : +3 and : +4 C : +5 will : +6 still : +7 be : +8 on : +9 their : +10 own : +11 completed : +12 circuts. : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 in : +7 a : +8 closed : +9 path : + + +1 2 3 4 <==> 1 2 3 4 // EQUI // 5 // +7 <==> 5 // EQUI // 5 // + + + + + +// The damaged bulb B has left a gap in the path so the charge can not reach it +// Terminals 1, 2 and 3 are separated from the positive battery terminal by a gap + +1 The : +2 damaged : +3 bulb : +4 B : +5 has : +6 left : +7 a : +8 gap : +9 in : +10 the : +11 path : +12 so : +13 the : +14 charge : +15 can : +16 not : +17 reach : +18 it : + + +1 Terminals : +2 1, : +3 2 : +4 and : +5 3 : +6 are : +7 separated : +8 from : +9 the : +10 positive : +11 battery : +12 terminal : +13 by : +14 a : +15 gap : + + +7 8 <==> 13 14 15 // EQUI // 5 // +13 14 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// the terminal is separated from the battery terminal +// the terminals are separated by a gap + +1 the : +2 terminal : +3 is : +4 separated : +5 from : +6 the : +7 battery : +8 terminal : + + +1 the : +2 terminals : +3 are : +4 separated : +5 by : +6 a : +7 gap : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // + + + + + +// a terminal is connected to another terminal +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 a : +2 terminal : +3 is : +4 connected : +5 to : +6 another : +7 terminal : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +3 4 <==> 6 7 // EQUI // 5 // + + + + + +// bulb A is connected to switch Z +// There is no path containing both switch Y and bulb A + +1 bulb : +2 A : +3 is : +4 connected : +5 to : +6 switch : +7 Z : + + +1 There : +2 is : +3 no : +4 path : +5 containing : +6 both : +7 switch : +8 Y : +9 and : +10 bulb : +11 A : + + +1 2 <==> 7 8 9 10 11 // EQUI // 5 // + + + + + +// there is a closed path, with switch z, that contains bulb a and the battery +// there is a path containing A, C, Z and the battery + +1 there : +2 is : +3 a : +4 closed : +5 path, : +6 with : +7 switch : +8 z, : +9 that : +10 contains : +11 bulb : +12 a : +13 and : +14 the : +15 battery : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 A, : +7 C, : +8 Z : +9 and : +10 the : +11 battery : + + +1 <==> 1 // EQUI // 5 // +6 7 8 <==> 5 // EQUI // 5 // +11 12 13 14 15 <==> 6 7 8 9 10 11 // EQUI // 5 // + + + + + +// Terminal 4, terminal 5, and terminal 6 are connected to the positive terminal +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 Terminal : +2 4, : +3 terminal : +4 5, : +5 and : +6 terminal : +7 6 : +8 are : +9 connected : +10 to : +11 the : +12 positive : +13 terminal : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 2 3 4 5 6 7 <==> 1 2 3 4 5 // EQUI // 5 // +8 9 <==> 6 7 // EQUI // 5 // +10 11 12 13 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// Circuit 2 is not a short circuit because the battery is not connected to itself. +// The battery in 2 is not in a closed path + +1 Circuit : +2 2 : +3 is : +4 not : +5 a : +6 short : +7 circuit : +8 because : +9 the : +10 battery : +11 is : +12 not : +13 connected : +14 to : +15 itself. : + + +1 The : +2 battery : +3 in : +4 2 : +5 is : +6 not : +7 in : +8 a : +9 closed : +10 path : + + +1 2 <==> 3 4 // EQUI // 5 // +5 6 7 <==> 7 8 9 10 // EQUI // 5 // +8 <==> 5 6 // EQUI // 5 // +9 10 <==> 1 2 // EQUI // 5 // + + + + + +// Because terminal 1 is seperated from the positive battery terminal. +// Terminal 1 and the positive terminal are separated by the gap + +1 Because : +2 terminal : +3 1 : +4 is : +5 seperated : +6 from : +7 the : +8 positive : +9 battery : +10 terminal. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulb a and bulb c are contained in different paths with the bttery. +// A and C are in different paths with the battery + +1 bulb : +2 a : +3 and : +4 bulb : +5 c : +6 are : +7 contained : +8 in : +9 different : +10 paths : +11 with : +12 the : +13 bttery. : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : +8 with : +9 the : +10 battery : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +6 7 <==> 4 // EQUI // 5 // +8 9 10 <==> 5 6 7 // EQUI // 5 // + + + + + +// because bulb a is in a closed path with the battery. +// Bulb A is still in a closed path with the battery + +1 because : +2 bulb : +3 a : +4 is : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery. : + + +1 Bulb : +2 A : +3 is : +4 still : +5 in : +6 a : +7 closed : +8 path : +9 with : +10 the : +11 battery : + + +2 3 <==> 1 2 // EQUI // 5 // +4 <==> 3 // EQUI // 5 // +5 6 7 8 <==> 5 6 7 8 // EQUI // 5 // +9 10 11 <==> 9 10 11 // EQUI // 5 // + + + + + +// the positive terminal is connected to the bulb +// Terminal 1 and the positive terminal are separated by the gap + +1 the : +2 positive : +3 terminal : +4 is : +5 connected : +6 to : +7 the : +8 bulb : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// because bulb a is in a closed path, and bulb c is in a closed path. +// Bulbs A and C are still in closed paths + +1 because : +2 bulb : +3 a : +4 is : +5 in : +6 a : +7 closed : +8 path, : +9 and : +10 bulb : +11 c : +12 is : +13 in : +14 a : +15 closed : +16 path. : + + +1 Bulbs : +2 A : +3 and : +4 C : +5 are : +6 still : +7 in : +8 closed : +9 paths : + + +2 3 <==> 1 2 3 4 // EQUI // 5 // +4 5 6 7 8 <==> 7 8 9 // EQUI // 5 // + + + + + +// The positive terminal has 1.5 V +// Terminal 1 and the positive terminal are separated by the gap + +1 The : +2 positive : +3 terminal : +4 has : +5 1.5 : +6 V : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 3 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// because of the chemical in the battery +// A battery uses a chemical reaction to maintain different electrical states at the terminals + +1 because : +2 of : +3 the : +4 chemical : +5 in : +6 the : +7 battery : + + +1 A : +2 battery : +3 uses : +4 a : +5 chemical : +6 reaction : +7 to : +8 maintain : +9 different : +10 electrical : +11 states : +12 at : +13 the : +14 terminals : + + +1 2 3 4 <==> 4 5 6 // EQUI // 5 // +5 6 7 <==> 1 2 // EQUI // 5 // + + + + + +// Both components need to be in closed paths. +// the bulb and the battery are in a closed path + +1 Both : +2 components : +3 need : +4 to : +5 be : +6 in : +7 closed : +8 paths. : + + +1 the : +2 bulb : +3 and : +4 the : +5 battery : +6 are : +7 in : +8 a : +9 closed : +10 path : + + +1 2 <==> 1 2 3 4 5 // EQUI // 5 // +3 4 5 <==> 6 // EQUI // 5 // +6 7 8 <==> 7 8 9 10 // EQUI // 5 // + + + + + +// bulb a and bulb c are wired in parallel +// A and C are in different paths + +1 bulb : +2 a : +3 and : +4 bulb : +5 c : +6 are : +7 wired : +8 in : +9 parallel : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 different : +7 paths : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +8 9 <==> 5 6 7 // EQUI // 5 // + + + + + +// Bulb terminals 3 and 4 +// Terminal 1 and the positive terminal are separated by the gap + +1 Bulb : +2 terminals : +3 3 : +4 and : +5 4 : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +1 2 3 4 5 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// the other bulb will not light. +// The damaged bulb and the other bulb must be contained in the same path + +1 the : +2 other : +3 bulb : +4 will : +5 not : +6 light. : + + +1 The : +2 damaged : +3 bulb : +4 and : +5 the : +6 other : +7 bulb : +8 must : +9 be : +10 contained : +11 in : +12 the : +13 same : +14 path : + + +1 2 3 <==> 1 2 3 4 5 6 7 // EQUI // 5 // + + + + + +// because there was a gap in the terminals +// there is no path containing both switch Y and bulb A + +1 because : +2 there : +3 was : +4 a : +5 gap : +6 in : +7 the : +8 terminals : + + +1 there : +2 is : +3 no : +4 path : +5 containing : +6 both : +7 switch : +8 Y : +9 and : +10 bulb : +11 A : + + +6 7 8 <==> 6 // EQUI // 5 // + + + + + +// if the switch is open in a path with the battery and bulb. +// When the switch and the bulb are contained in the same path + +1 if : +2 the : +3 switch : +4 is : +5 open : +6 in : +7 a : +8 path : +9 with : +10 the : +11 battery : +12 and : +13 bulb. : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 3 4 5 6 // EQUI // 5 // +6 7 8 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// 4, 5, and 6 are connected to the positive side +// Terminals 4, 5 and 6 are connected to the positive battery terminal + +1 4, : +2 5, : +3 and : +4 6 : +5 are : +6 connected : +7 to : +8 the : +9 positive : +10 side : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 connected : +8 to : +9 the : +10 positive : +11 battery : +12 terminal : + + +1 2 3 4 <==> 1 2 3 4 5 // EQUI // 5 // +5 6 <==> 6 7 // EQUI // 5 // +7 8 9 10 <==> 8 9 10 11 12 // EQUI // 5 // + + + + + +// a voltage reading of 0 volts indicates a gap in the circuit. +// there is no gap between the terminals + +1 a : +2 voltage : +3 reading : +4 of : +5 0 : +6 volts : +7 indicates : +8 a : +9 gap : +10 in : +11 the : +12 circuit. : + + +1 there : +2 is : +3 no : +4 gap : +5 between : +6 the : +7 terminals : + + +8 9 <==> 3 4 // EQUI // 5 // + + + + + +// 4 5 and 6 are not connected to negative battery terminal +// Terminals 4, 5 and 6 are not connected to the negative battery terminal + +1 4 : +2 5 : +3 and : +4 6 : +5 are : +6 not : +7 connected : +8 to : +9 negative : +10 battery : +11 terminal : + + +1 Terminals : +2 4, : +3 5 : +4 and : +5 6 : +6 are : +7 not : +8 connected : +9 to : +10 the : +11 negative : +12 battery : +13 terminal : + + +1 2 3 4 <==> 1 2 3 4 5 // EQUI // 5 // +5 6 7 <==> 6 7 8 // EQUI // 5 // +8 9 10 11 <==> 9 10 11 12 13 // EQUI // 5 // + + + + + +// bulbs a and b are still contained on a closed path with the battery +// If C burns out then A and B are still in a closed path with the battery + +1 bulbs : +2 a : +3 and : +4 b : +5 are : +6 still : +7 contained : +8 on : +9 a : +10 closed : +11 path : +12 with : +13 the : +14 battery : + + +1 If : +2 C : +3 burns : +4 out : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery : + + +1 2 3 4 <==> 6 7 8 // EQUI // 5 // +5 <==> 9 // EQUI // 5 // +6 <==> 10 // EQUI // 5 // +8 9 10 11 <==> 11 12 13 14 // EQUI // 5 // +12 13 14 <==> 15 16 17 // EQUI // 5 // + + + + + +// bulbs a, b, and c are all in the same path. +// A and C are in the same path + +1 bulbs : +2 a, : +3 b, : +4 and : +5 c : +6 are : +7 all : +8 in : +9 the : +10 same : +11 path. : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 path : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +8 9 10 11 <==> 5 6 7 8 // EQUI // 5 // + + + + + +// a and c are on the same closed path with the battery +// A and C are in the same closed path + +1 a : +2 and : +3 c : +4 are : +5 on : +6 the : +7 same : +8 closed : +9 path : +10 with : +11 the : +12 battery : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 closed : +9 path : + + +1 2 3 <==> 1 2 3 // EQUI // 5 // +4 <==> 4 // EQUI // 5 // +5 6 7 8 9 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// "if the switch is included in the bulb""s closed path, then the switch being open will affect the bulb" +// If a bulb and a switch are in the same path the switch affects the bulb + +1 "if : +2 the : +3 switch : +4 is : +5 included : +6 in : +7 the : +8 bulb""s : +9 closed : +10 path, : +11 then : +12 the : +13 switch : +14 being : +15 open : +16 will : +17 affect : +18 the : +19 bulb" : + + +1 If : +2 a : +3 bulb : +4 and : +5 a : +6 switch : +7 are : +8 in : +9 the : +10 same : +11 path : +12 the : +13 switch : +14 affects : +15 the : +16 bulb : + + +1 <==> 1 // EQUI // 5 // +2 3 <==> 2 3 4 5 6 // EQUI // 5 // +4 5 <==> 7 // EQUI // 5 // +9 10 <==> 8 9 10 11 // EQUI // 5 // +12 13 <==> 12 13 // EQUI // 5 // +16 17 <==> 14 // EQUI // 5 // +18 19 <==> 15 16 // EQUI // 5 // + + + + + +// because the outcome of the bulb will not affect each other +// A and C are not in the same path with the battery + +1 because : +2 the : +3 outcome : +4 of : +5 the : +6 bulb : +7 will : +8 not : +9 affect : +10 each : +11 other : + + +1 A : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 path : +10 with : +11 the : +12 battery : + + +4 5 6 <==> 10 11 12 // EQUI // 5 // +10 11 <==> 6 7 8 9 // EQUI // 5 // + + + + + +// not seperated by a gap +// Terminal 6 and the positive terminal are not separated by the gap + +1 not : +2 seperated : +3 by : +4 a : +5 gap : + + +1 Terminal : +2 6 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 not : +9 separated : +10 by : +11 the : +12 gap : + + +1 2 <==> 7 8 9 // EQUI // 5 // +3 4 5 <==> 10 11 12 // EQUI // 5 // + + + + + +// because terminal 1 and the neavtive terminal are seperated. +// Terminal 1 and the positive terminal are separated by the gap + +1 because : +2 terminal : +3 1 : +4 and : +5 the : +6 neavtive : +7 terminal : +8 are : +9 seperated. : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +2 3 4 5 6 7 <==> 1 2 3 4 5 6 // EQUI // 5 // +8 9 <==> 7 8 // EQUI // 5 // + + + + + +// Because their is a gap between A and C now. +// there is an incomplete circuit + +1 Because : +2 their : +3 is : +4 a : +5 gap : +6 between : +7 A : +8 and : +9 C : +10 now. : + + +1 there : +2 is : +3 an : +4 incomplete : +5 circuit : + + +4 5 <==> 3 4 5 // EQUI // 5 // + + + + + +// Bulb A and bulb b are still contained in closed paths with the battery +// If C burns out then A and B are still in a closed path with the battery + +1 Bulb : +2 A : +3 and : +4 bulb : +5 b : +6 are : +7 still : +8 contained : +9 in : +10 closed : +11 paths : +12 with : +13 the : +14 battery : + + +1 If : +2 C : +3 burns : +4 out : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery : + + +1 2 3 4 5 <==> 6 7 8 // EQUI // 5 // +6 <==> 9 // EQUI // 5 // +7 <==> 10 // EQUI // 5 // +9 10 11 <==> 11 12 13 14 // EQUI // 5 // +12 13 14 <==> 15 16 17 // EQUI // 5 // + + + + + +// B and C are not in the same circuit as A. +// each bulb is in its own path + +1 B : +2 and : +3 C : +4 are : +5 not : +6 in : +7 the : +8 same : +9 circuit : +10 as : +11 A. : + + +1 each : +2 bulb : +3 is : +4 in : +5 its : +6 own : +7 path : + + +6 7 8 9 <==> 4 5 6 7 // EQUI // 5 // +10 <==> 3 // EQUI // 5 // +11 <==> 1 2 // EQUI // 5 // + + + + + +// there terminals are separated by a gap when the voltage jumps from 0 to 1.5. +// the terminals are separated by a gap + +1 there : +2 terminals : +3 are : +4 separated : +5 by : +6 a : +7 gap : +8 when : +9 the : +10 voltage : +11 jumps : +12 from : +13 0 : +14 to : +15 1.5. : + + +1 the : +2 terminals : +3 are : +4 separated : +5 by : +6 a : +7 gap : + + +1 2 <==> 1 2 // EQUI // 5 // +3 4 <==> 3 4 // EQUI // 5 // +5 6 7 <==> 5 6 7 // EQUI // 5 // + + + + + +// bulbs a b and c are on a closed path +// A and C are in the same closed path + +1 bulbs : +2 a : +3 b : +4 and : +5 c : +6 are : +7 on : +8 a : +9 closed : +10 path : + + +1 A : +2 and : +3 C : +4 are : +5 in : +6 the : +7 same : +8 closed : +9 path : + + +1 2 3 4 5 <==> 1 2 3 // EQUI // 5 // +7 8 9 10 <==> 5 6 7 8 9 // EQUI // 5 // + + + + + +// I think the red X means that this is dangerous and should never happen unless something is seriously wrong. +// there is a short circuit + +1 I : +2 think : +3 the : +4 red : +5 X : +6 means : +7 that : +8 this : +9 is : +10 dangerous : +11 and : +12 should : +13 never : +14 happen : +15 unless : +16 something : +17 is : +18 seriously : +19 wrong. : + + +1 there : +2 is : +3 a : +4 short : +5 circuit : + + +19 <==> 2 // EQUI // 5 // + + + + + +// because there was no gap from the positive terminal of the battery +// Terminal 1 and the positive terminal are separated by the gap + +1 because : +2 there : +3 was : +4 no : +5 gap : +6 from : +7 the : +8 positive : +9 terminal : +10 of : +11 the : +12 battery : + + +1 Terminal : +2 1 : +3 and : +4 the : +5 positive : +6 terminal : +7 are : +8 separated : +9 by : +10 the : +11 gap : + + +4 5 <==> 9 10 11 // EQUI // 5 // +6 7 8 9 <==> 1 2 3 4 5 6 // EQUI // 5 // + + + + + +// bulbs A and B are still connected to the closed path containing the battery +// If C burns out then A and B are still in a closed path with the battery + +1 bulbs : +2 A : +3 and : +4 B : +5 are : +6 still : +7 connected : +8 to : +9 the : +10 closed : +11 path : +12 containing : +13 the : +14 battery : + + +1 If : +2 C : +3 burns : +4 out : +5 then : +6 A : +7 and : +8 B : +9 are : +10 still : +11 in : +12 a : +13 closed : +14 path : +15 with : +16 the : +17 battery : + + +1 2 3 4 <==> 6 7 8 // EQUI // 5 // +5 <==> 9 // EQUI // 5 // +6 <==> 10 // EQUI // 5 // +8 9 10 11 <==> 11 12 13 14 // EQUI // 5 // +12 13 14 <==> 15 16 17 // EQUI // 5 // + + + + + +// if the switch and the bulb are in the same path +// When the switch and the bulb are contained in the same path + +1 if : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 in : +9 the : +10 same : +11 path : + + +1 When : +2 the : +3 switch : +4 and : +5 the : +6 bulb : +7 are : +8 contained : +9 in : +10 the : +11 same : +12 path : + + +1 <==> 1 // EQUI // 5 // +2 3 4 5 6 <==> 2 3 4 5 6 // EQUI // 5 // +7 <==> 7 8 // EQUI // 5 // +8 9 10 11 <==> 9 10 11 12 // EQUI // 5 // + + + + + +// bulb c and switch z are in the same closed path +// there is a path containing both Z and C + +1 bulb : +2 c : +3 and : +4 switch : +5 z : +6 are : +7 in : +8 the : +9 same : +10 closed : +11 path : + + +1 there : +2 is : +3 a : +4 path : +5 containing : +6 both : +7 Z : +8 and : +9 C : + + +1 2 3 4 5 <==> 7 8 9 // EQUI // 5 // +6 <==> 6 // EQUI // 5 // +7 8 9 10 11 <==> 3 4 // EQUI // 5 // + + + + + +// the bulb only has one terminal connected +// The battery is contained in a path which does not contain any other components + +1 the : +2 bulb : +3 only : +4 has : +5 one : +6 terminal : +7 connected : + + +1 The : +2 battery : +3 is : +4 contained : +5 in : +6 a : +7 path : +8 which : +9 does : +10 not : +11 contain : +12 any : +13 other : +14 components : + + +1 2 <==> 1 2 // EQUI // 5 // +4 <==> 9 10 11 // EQUI // 5 // + + + +