Question

A resistor with a current of 3a through it converts 500j of electrical energy to heat energy in 12sec. What is the voltage across the resistor

Answer 1

Explanation:

Power = Current^2×Resistance×time

H=l^2Rt

H=VIt. because, V= IR

so, 500j = 3×12×v

V = 500/36

V=13.88 Volt

hope it will help