An alternating e.m.f. is applied to purely capacitive circuit. The phase relation between e.m.f. and current flowing in the circuit is or in a circuit containing capacitance only

The phase angle between e.m.f. and current in LCR series ac circuit is

In a purely capcitive circuit, the e.m.f.

In a purely capacitive circuit, the current

Discuss the phase relationship between current and emf in an circuit containing a capacitance only.

In a pure inductive circuit or In an ac circuit containing inductance only, the current

In an AC circuit containing only capacitance the current

If an alternating e.m.f. is applied to a series L-R circuit, the phase angle between e.m.f. and current is given by tan theta = (omega L)/R . Hence the power factor of the series L-R circuit is