Question

what is a resistance of a resistor if on passing a current of 120MA the potential difference across its end is 1.5V

Answer 1

Hey Mate

your answer is here

according to ohm's law

V = IR

given that

V = 1.5 V

and
I = 120MA

so, R = V/I

R = 1.5/(120×10^6) = 1.25×10^-8

so,

R = 1.25×10^-8 ohm

Thanks