Question

In AC circuit having only capacitor, the current _____.

• A. Leads the voltage by $\frac{\pi }{2}$ in phase
• B. Lags behind the voltage by $\frac{\pi }{2}$ in phase
• C. Leads the voltage by $\pi$ in phase
• D. Lags behind the voltage by $\pi$ in phase

Answer 1

The correct option is A Leads the voltage by $\frac{\pi }{2}$ in phase

For a purely capacitive circuit current leads the voltage by $\pi /2$ in phase.