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In an A.C. circuit the instantaneous val...

In an A.C. circuit the instantaneous values of e.m.f. And current are given by `E=100 sin (200 t)` volt and `I=2 sin(200 t +(pi)/3)` ampere.
The average power consumed is the circuit is

A

A. 200 W

B

B. 100 W

C

C. 50 W

D

D. 25 W

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(av) = (E_0)/(sqrt2) xx (I_0)/(sqrt2) xx cos theta = (100 xx 2)/(2) xx 1/2 = 50 W`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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