Question

100 j of heat is produced each second in a 4 resistance​

Answer 1

question is incomplete,right?

Answer 2

hey mate!

We know that,

Heat = V^2 × t / R

100J = V^2 × 1sec. / 4ohm

V^2 = 100J × 4ohm / 1sec.

V^2 = 400

V = ✓400

V = 20V