It is noted that the voltage and the current are out of phase when a capacitor is used in an ac circuit. By comparing the voltage and current expressions for a capacitor in an ac circuit, it is possible to determine the phase difference between the voltage and current.
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| Fig: Capacitive Circuit |
- If the circuit is only capacitive then the phase angle between current and voltage will be 90 degree.
- Current leads the voltage by 90 degree.
- We also can say voltage lags the current by 90 degree.
