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Capacitor in an AC Circuit

When the rms ...

Question

When the rms voltages $V_{L}, V_{C}$ and $V_{R}$ are measured respectively across the inductor L, the capacitor C and the resistor R in a series LCR circuit connected to an AC source, it is found that the ratio $V_{L} : V_{C} : V_{R} = 1 : 2 : 3$ . If the rms voltage of the AC source is 100 V, then $V_{R}$ is close to :

A

50 V

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B

70 V

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C

90 V

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D

100 V

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Solution

The correct option is C 90 V

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