For an ohmic resistor, resistance is the proportionality constant for:
A)potential difference and electric field
B)current density and electric field
C)current and length
D)current and cross-sectional area
E)current and potential difference

Question

Quizplus · Accepted Answer

For an ohmic resistor, the resistance is the proportionality constant between the current and the potential difference across it. This is known as Ohm's Law: V = IR, where V is the potential difference, I is the current, and R is the resistance. Therefore, the best choice is E, current and potential difference.

For an Ohmic Resistor, Resistance Is the Proportionality Constant For