Solve this:

47. An an A.C. circuit, the current flowing is i = 5 sin(100t -   π 2 ) amp and the potential difference is V = 200 sin 100t volt. The power consumption is equal to

(a)   1000 W
(b)  40 W
(c)  20 W
(d)  0 W
 

Dear student,P=Vrms×Irms×cosϕP=VoIo2cosϕP=200×52×cosπ2P=0WRegards

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