resistance definition example
The resistance (R) of an object is defined as the ratio of voltage across it (V) to current through it (I), while the conductance (G) is the inverse: R = V I, G = I V = 1 R {\displaystyle R={V \over I},\qquad G={I \over V}={\frac {1}{R}}} For a wide variety of materials and conditions, V and I are directly proportional to each other, and therefore R ...