Questions
An rms voltage of 110 V is applied across a series circuit having a resistance and an impedance The power consumed is
detailed solution
Correct option is A
P=EvIv cosϕ;P=EvEvZRZor P=E2vRZ2=110×110×1122×22=275 WSimilar Questions
A sinusoidal alternating current of peak value I0 passes through a heater of resistance R. What is the mean power output of the heater?
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