Question

What is Joule law? ​

Answer 1

Answer:

Joule effect and Joule's law are any of several different physical effects discovered or characterized by English physicist James Prescott Joule.

Answer 2

Joule's law of heating implies that heat produced in a resistor is

(i)directly proportional to the square of current for a given resistance,

(ii) directly proportional to the resistance for a given current, and

(iii) directly proportional to the time for which the current flows through the resistor.

H∝I²

H∝R

H∝t

⇒H∝I²Rt

⇒H=k I²Rt

if k=1

then, H= I²Rt