When battery is connected to a capacitor, current flows throughout
the circuit except between the plates of the capacitor. But, there
exists electric field between the plates which eventually create
magnetic field. It leads inconsistency in Ampere’s circuital law.
For this problem, concept of displacement current is
Introduced by Maxwell. He modifies the Ampere’s law as follows,
→ Ampere’s law
→ Ampere Maxwell’s law
Where, B = Magnetic field
I = current
Id = displacement current
According to this law, displacement current is arise due to the changing electric field which in turn creates magnetic field between the plates.
ΦE = electric flux
ϵ0 = permittivity of the space
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