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In series LCR circuit `R = 18 Omega` and impedence is `33 Omega`. An Vrms voltage `220 V` is applied across the circuit . The true power consumed in AC circuit isA. 220WB. 400WC. 600WD. 800W |
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Answer» Correct Answer - D `P=e_(rms). i_(rms) cos phi` `=e_(rms.) (e_(rms))/(z). R/z` `=(220 xx 220 xx 18)/(33 xx 33)` `=(20 xx 20 xx 18)/(3 xx 3)` `=20 xx 20 xx 2=800 W`. |
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