Question

write joule's law of heating​

Answer 1

amount of production of heat in a conductor is directly proportional square of electric current flowing through it,the resistance in it and time taken.

H=I^2Rt

Answer 2

Joule's law states that the heat produced in an current carrying conductor is proportional to:

(i) the square of the current I, (i.e. H∝I²)

(ii) resistance of the circuit R, (i.e. H∝R) and

(iii) the time t during which the current flows through the circuit. (i.e. H∝t)

∴H=I²Rt

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