A parallel-plate capacitor has a capacitance of 100pF, a plate areaof 135cm2, and a mica dielectric (κ =5.4) completely filling the space between the plates. At 75V potential difference, calculate the following.
a) the electric field magnitude E inthe mica
b) the amount of excess free charge on each plate
c) the amount of the induced surface charge on the mica.