Physics Capacitance Problem-University of California San Diego .

We have a 3.2V battery, hooked up to a parallel plate capacitor filled with air. The area of the capacitor is 6 cm² and the separation is 0.2cm. We then insert a dielectric material (dielectric constant=3) in the space between the plates. After this insertion, the charge on the plates:

a. is increased by a factor of 3

b. stays the same

c. is decreased by a factor of 3

d. is decreased by a factor of 9

e. is increased by a factor of 9