A small signal voltage 
is applied across an ideal capacitor C
A
Current 
is in phase with voltage 
.
is in phase with voltage .
B
Current 
leads voltage 
by 
leads voltage by
C
Current 
, lags voltage 
by 
, lags voltage by
D
Over a full cycle the capacitor 
does not consume any energy from the voltage source.
does not consume any energy from the voltage source.
Text Solution
Verified by ExpertsThe correct answer is:
D
When an ideal capacitor is connected with an ac voltage source, current leads voltage by 90 
. Since, energy stored in capacitor during charging is spent in maintaining charge on the capacitor during discharging. Hence over a full cycle the capacitor does not consume any energy from the voltage source.
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