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When an AC voltage of 220 V is applied to the capacitor CA. the maximum voltage between plates is 220 VB. the current is in phase with the applied voltageC. the charge on the plates is in phase with the applied voltageD. power delivered to the capacitor is zero |
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Answer» Correct Answer - C::D When an a.c. voltages of 220 V is applied to a capacitor C, the charge on the plates is in phase with the applied voltage. As current developed leads the applied voltage by a phase angle of `90^(@)`, therefore, power delivered to the capacitor per cycle is `P = E_(upsilon) I_(upsilon) cos 90^(@)` = zero. Choices (c) and (d) are correct. |
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