Assertion: diode's resistance | /r/HasProperty | high
Facets:
value: very
type: DEGREE
value: before attaining break-over voltage
type: TEMPORAL
value: such as with air
type: OTHER
value: in the range of mega ohms
type: OTHER
Source sentences:
text: A reverse bias diode has very high resistance.
text: It has high resistance on one end and low resistance on the other end.
text: This is why in practice we say diodes have a high resistance in the reverse direction – not an infinite resistance.
text: The forward resistance must be very small in few ohms while backward resistance must be very high in the range of mega ohms.
text: If forward resistance is very high the diode is open circuited and if backward resistance is very small diode will be short circuited.
text: When current flows the other way, it’s “reverse-biased,” and the diode has high resistance.
text: It may even indicate 'OL' for an open circuit, since the resistance is so high.
text: If the diode reads high resistance in both directions, this is a sign that the diode is open.
text: We observe that the current will decrease faster if the resistance is high, such as with air.
text: Connected the other way across the diode, it should show a very high resistance at (b)
text: But before attaining break-over voltage, the resistance offered by the diode is quite high.
text: If the voltage applied across it is lower than the trigger voltage, the diode does not switch on and has extremely high resistance in a circuit.
text: The resistance of the diode in the reverse direction (when the diode is ‘off’) must be high, and the insulation offered by the depletion layer between the P and N layers extremely good to avoid the possibility of reverse breakdown, where the insulation of the depletion layer fails and the diode is permanently damaged by the high reverse voltage across the junction.
text: When the diode receives a voltage across its terminal below the trigger voltage, the device is in its "off state" and the diode exhibits a very high resistance.
text: The silicon signal diode has high voltage drop at the coupling about 0.6 to 0.7 volts so, it has very high resistance but low forward resistance.