A parallel-plate capacitor of plate area A is being charged by acurrent I flowing into its plates via external wires. At oneinstant, the charge on the capacitor plates is Q.
(a)Assume that the electric field between the plates is uniform.Show that the electric field between the plates at this instant isE=Q/εA.
(b)Show that the electric flux crossing the mathematicalmidplane between the plate surfaces is Q/ε.
(c)What is the displacement current of this capacitor?
(d)Show that this displacement current matches the ordinarycurrent I flowing into the plates.