Question

What is the cause of displacement current?

Answer 1

Displacement current is a quantity appearing in Maxwell's Equation. ... The units of displacement current are same as that of electric current density. Displacement current is not an electriccurrent caused due to moving of charges(called displacement current), but it is caused by a time varying electric field.............

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Answer 2

In electromagnetism, displacement current is a quantity appearing in Maxwell's equations that is defined in terms of the rate of change of electricdisplacement field. Displacement current has the units of electric current density, and it has an associatedmagnetic field just as actual currents do.