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## Homework Statement

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.

## Homework Equations

a) Q=CV

b) I=(epsilon)*d(phi)/dt

c) i=dQ/dt

## 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?