Question

400j of heat is produced in 4s in a 4ohm resistor. Find potential difference across the resistor

Answer 1

Hi friend,


We know,

Heat produced, H = i2Rt

=> H = (V/R)2Rt

=> H = V2t/R

=> V2 = HR/t

=> V = (400×4/4)1/2

=> V = 20 V

This is the required voltage.

Hope this helps you..☺☺☺

Regards Vishal_________(BhamBhamBhole)
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#BeBrainly✌✌

Answer 2

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