An inductance and a resistance are connected in series with an AC potential. In this circuit
Options:
(a) the current and the potential difference across the resistance lead the PD across the inductance by phase angle `pi/2`
(b) the current and the potential difference across the resistance lag behind PD across the inductance by an angle `pi/2`
(c) the current and the potential difference across the resistance lag behind the PD across the inductance by an angle `pi`
(d) the PD across the resistance lags behind the PD across the inductance by an angle `pi/2` but the current in the resistance leads the PD across inductance by `pi/2`