Question

a current of 0.4mA flows in awire of resistance 500ohm ,find the potential difference accross the ends of the wire​

Answer 1

Explanation:

I=0.4 ×10^-3 A

R=500 Ohm

V=?

V= IR

V=0.4×10^-3 ×500

V=200.0 × 10^-3

V=0.2 V