In a circuit, the current lags behind the voltage by a phase difference of t/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 of `(pi)/(2) or 90^(@)`. In a purely resistive circuit current is in phase with the applied voltage.