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When an AC voltage of 220 V is applied t...

When an AC voltage of 220 V is applied to the capacitor C

A

the maximum voltage between plates is 220 V.

B

the current is in phase with the applied voltage.

C

the charge on the plates is in phase with the applied voltage.

D

power delivered to the capacitor is zero.

Text Solution

Verified by Experts

The correct Answer is:
C, D
When the AC voltage is applied to the capacitor. The plate with positive charge will be at higher potential and the plate with negative charge will be at lower potential so, we can say that the charge is in phase with the applied voltage.
Power applied to a circuit is,
`lt P gt =V_"rms" I_"rms" cos phi`
but for capacitive circuit `phi=90^@`
`therefore lt P gt =V_"rms" I_"rms" cos 90^@=0`
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