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Questions  

An rms voltage of 110 V is applied across a series circuit having a resistance 11Ω and an impedance 22ΩThe power consumed is

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

detailed solution

Correct option is A

P=EvIv cosϕ;P=EvEvZRZor P=E2vRZ2=110×110×1122×22=275 W

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