Question

heat produced in a conductor of resistance 4.2ohm with 10 ampere current is

Answer 1

Answer:

420 J

Explanation:

Using formula,

V=IR

V=10×4.2

V=42 V

Using the formula for finding heat generated,

H= V^2/R

H= 42×42/4.2

On solving, we get,

H = 420 J