Maxwell found an inconsistency in the Ampere’s law and suggested the
existence of an additional current, called displacement current, to remove
this inconsistency This displacement current is due to time-varying electric
field and is given by
0
d
d
di
Φt
ε
Ε
=
and acts as a source of magnetic field in exactly the same way as conduction
current 2 An accelerating charge produces electromagnetic waves