there is a capacitor with a constant potential difference of V in air. When a dielectric is completely inserted between the plates of the capacitor completely filling it, additional charge flows onto the positive plate. The additional charge should be Q=kCV-CV right? Would the induced charge on either faces of the dielectric be Q=kCV? Since the dielectric doesnt change the electric field (V=ED), why doesnt the increase in charge on the plates increase the field?