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In a series LCR circuit R = 200 ? and the voltage and the frequency of the main supply is 220 V and 50 Hz respectively. On taking out the capacitance from the circuit the current lags behind the voltage by 30°. On taking out the inductor from the circuit the current leads the voltage by 30°. The power dissipated in the LCR circuit is?

In a series LCR circuit R = 200 ? and the voltage and the frequency of the main supply is 220 V and 50
Hz respectively. On taking out the capacitance from the circuit the current lags behind the voltage by 30°.
On taking out the inductor from the circuit the current leads the voltage by 30°. The power dissipated in
the LCR circuit is?

Grade:11

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
8 years ago
Just draw the current vector wrt to the voltage and you will get the answer .The question is very easy.

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