Question

derive an expression for the instantaneous current in an ac circuit having inductor only

Answer 1

Answer:

The average power over a cycle is given by the average of the two terms in the given equation.It is only the second term which is time independent. Its average is 0. Therefore, P = 2vmimcosϕ = 2vmimcosϕ = VIcosϕ15

Explanation:

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