Q7 of 10 Page 1

What is Joule’s Law of heating? Give its one application.

According to Joule’s Law of Heating, the heat produced in a resistor is –

i. Directly proportional to the square of current for a given resistance (i2),


ii. Directly proportional to resistance for a given current (R),


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


Mathematically, H= i2RT = ViT =


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