1. The problem statement, all variables and given/known data Given an electric potential of Vo*sin(wt). This is applied to a parallel plate capacitor of area S, separation d and capacitance C. The questions are a) What is charge Q on the plates? b) Find the electric displacement current c) Calculate the current in the wire. 2. Relevant equations a) Q=CV b) I=(epsilon)*d(phi)/dt c) i=dQ/dt 3. The attempt at a solution for part a, i got Q=CV=C*Vo*sin(wt) for part b, i got I=(epsilon)*w*cos(wt) for part c, i got i=C*w*cos(wt) is this right, because i have a feeling that this is a little too easy of an answer. why does the displacement current differ from the current in the wire?