Question

If someone told you that a certain AC circuit was a capacitive, you would know that in that circuit the current

A) current and voltage are zero
B) leads the voltage
C) and voltage are in phrase
D) lags the voltage

Answer 1

B) leads the voltage

Step-by-step explanation:

One way to think about it is that the current causes charge to be accumulated on the capacitor, changing its voltage. The current must be non-zero before the voltage can change. Hence current leads voltage.