Question

A current of 4A flows through a conductor and 10 W is dissipated. What p.d. exists
across the ends of the conductor?

Answer 1

Answer:2.5V

Explanation:

we know that,

P=V×I

So,

V= P/I

=> V= 10/4

=2.5V

Answer 2

Answer

Power=V*I

10 =V*4

10/4=v

V=2.5