Question

100J of heat is produced each second in a 4 ohm resistor.What is potential difference accross the resistor​

Answer 1

Explanation:

The produced heat is given as,

H=I

2

Rt

100=I

2

×4×1

I=25A

The potential difference is given as,

V=IR

=5×4

=20V

Thus, the potential difference across the resistor is 20V.