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Questions  

An rms voltage of 110V is applied across a series circuit having resistance 11Ω and an impedance22Ω . The power consumed is

a
275W
b
366W
c
550W
d
1100W

detailed solution

Correct option is A

P=EvIvcosϕ;P=EvEvZRZ Or P=Ev2RZ2=110×110×1122×22W=275W

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