Question

derive an expression for the heat produced by an electric current flow through a resistance R for time t.
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Answer 1

Answer:

Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule's equation of electrical heating.

Answer 2

W = V x I x t. And the work done is dissipated as heat. Therefore, Heat produced, H=W=V x I x t => VIt.