Power of an electric- circuit is(A) V.R(C) V2(B) V. R(D) V? Rt – InterviewSolution

1.

Power of an electric- circuit is(A) V.R(C) V2(B) V. R(D) V? Rt

Answer»

Ohm's lawequation(formula): V = I × R and thepowerlawequation(formula): P = I × V.

I = V/R from ohm's law

Substituting I in P, we get,

P = V/R * V

P= V²/R

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