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In series LCR circuit R = 18 Omega an...

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 is

A

220W

B

400W

C

600W

D

800W

Text Solution

Verified by Experts

The correct Answer is:
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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