In a reactive circuit which consists of Resistance, Inductance and Capacitance there is net lead or lag between the applied voltage of frequency
If one recalls the common mnemonic CIVIL,
one can remember that
In a capacitor (C) the current (I) leads voltage (V), voltage (V) leads current (I) in an inductor (L)
As given in the diagram, if
For the same angle
In either case power factor is attempted to be made as near to 1 as possible. In inductive circuits capacitors are added wheres in capacitive circuits inductors are added to improve power factor.