Question

While explaining about displacement current they take the example of capacitor. They say that current between plates is zero but there is current in the conductor. Is that possible? can you explain? Plz..

Answer 1

yes it is possible

Answer 2

An example illustrating the need for the displacement current arises in connection with capacitors with no medium between the plates. Consider the charging capacitor in the figure. The capacitor is in a circuit that transfers charge (on a wire external to the capacitor) from the left plate to the right plate, charging the capacitor and increasing the electric field between its plates. The same current enters the right plate (say I ) as leaves the left plate. Although current is flowing through the capacitor, no actual charge is transported through the vacuum between its plates. Nonetheless, a magnetic field exists between the plates as though a current were present there as well. The explanation is that a displacement current ID "flows" in the vacuum, and this current produces the magnetic field in the region between the plates.