Question

The potential difference between the terminals of a resistor is 40 V when it draws a current of 3 A from the source. What current will the resistor draw if the potential difference is increased to 60 V?

Answer 1

Explanation:

u see resistance will not change because it dependent on length and area of cross section.

V=IR

R=V/I

R=40/3 ohm

hence, resistance be same even if 60V IS TAKEN that is 40/3 ohm