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Q.

An r.m.s. volt age of 110 V is applied across a series circuit having a resistance 11 Ω and impedance 22 Ω. The power consumed is

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a

275 W

b

366 W

c

550 W

d

1100 W

answer is A.

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Detailed Solution

P=EvIv cos ϕ; P=Ev×EvZ×RZP=Ev2RZ2=110×110×1122×22 W = 275 W
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