1.

In an AC circuit voltage applied is e=220 sin 100 t. if the impedance is `110Omega` and phase difference between the current and voltage is `60^(@)` the power consumption is equal toA. 55 WB. 110 WC. 220 WD. 330 W

Answer» Correct Answer - B
`overline(P)=eIcosphi=(e^(2))/(Z)cosphi`
`=(220xx220xxcos60)/(110)=110W`


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