When an a.c. voltage is applied to a capacitor; no power is consumed because the current?

A. leads the voltage by 90°
B. lags behind the voltage by 90°
C. and voltage are in phase
D. and voltage are 180° out of phase

Correct Answer:

Option A = leads the voltage by 90°

Explanation

In a capacitive circuit, current leads voltage by 90°, or voltage lags current by 90°