The relation between the phase of current and voltage in a circuit containing only inductor is ….

Options

A. voltage leads ahead by `pi/2`
B. current leads ahead by `pi/2`
C. both are in same phase
D. phase difference is `pi`

Answer

A

Explanation

The current in a circuit containing only inductor is `I=(V_m cos (omegat-pi/2))/(omegaL)`, hence current lags behind the voltage by `pi/2` phase. So voltage leads ahead by `pi/2`