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 c 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 volatge by a phase angle of `(pi)/(2)` or `90^(@)`.
In a purely resistive circuit is in phase with the applied voltage.