In a circuit, the current lags behind the voltage by a phase difference of `pi//2`, the circuit will contain which of the following ?

Options

A. Only R
B. Only C
C. R and C
D. Only L

Answer

D

Explanation

When a circuit contains inductance only, then the current lags behind the voltage by the phase difference of `pi/2` or `90^(@)`
while in a purely capacitive circuit, the current leads the voltage by a phase angle `pi/2` or `90^(@)`
In a purely resistive circuit current is in phase with the applied voltage.