As far as I know there is no flow of current across the from one plate to the other plate directly. Because that would mean charges are flowing through the dielectric. Instead there is a "migration" of between each plate and the source of EMF terminal it is connected to. ie negative charges migrate into the postive terminal of the EMF from the one plate, and negative charges simulatenously migrate out of the negative terminal of the EMF and onto the negative plate, thereby setting up an electric field stored across the dielectric.Actually, in a capacitor ...in initial condition it behaves as short circuit whereas in final conditon it behaves as open circuit.
It is so because .. at initial condition when the capacitor carries no charge(and hence no voltage) the source voltage i.e., EMF is applied to a circuit then charge transfer takes place from one plate to other due to which the capacitor behaves as short circuit.
And when the total transfer of charge takes place. it hence becomes stable and acquires a voltage drop across it and so acts as open circuit.....in the final state of transient.
by Aaron Carman
by Jake Hertz
by Aaron Carman