Q.

Current flowing through a 10Ω resistor is given by i=(3+4cos⁡ 100πt)A. Then average power consumed by the resistor is

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a

150 W

b

170 W

c

75 W

d

220 W

answer is B.

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Detailed Solution

Irms=32+422A=17A∴ P=Irms2 R=17×10W=170 W
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