Question

In AC circuit, the current and voltage are given by i=5coswt, and v=200sinwt respectively. Power loss in the circuit ?

Answer 1

Hola User_____________________

Here is Your Answer..!!!
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↪Actually welcome to the concept of the ALTERNATING CUURENT..!!

↪Basically we know that...

↪The power loss in a alternating circuit is given as. ..

↪Power loss = Vrms . I rms. cos @

↪since after solving and getting the voltage and the current in same phase ..

↪the phase difference phi comes out to be 90°

↪thus after solving we get as ...

↪I = 5 sin ( wt + 90° ) and V = 2 sin wt

↪so here the phase difference phi comes out to be 90°

↪so we get as the equation as ..

↪Power loss = I rms. Vrms . cos 90°

↪Power loss = 0 ..... ( since cos90° = 0)

↪Thus power loss is ZERO..

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↪⭐hope it helps u....☺