The charge on the square plates of a parallel-plate capacitor is Q. The potential difference across the plates is maintained with constant voltage by a battery as the plates are pulled apart to twice their original separation, which is insignificant compared to the dimensions of the plates. The amount of charge on the plates is now equal to:______.

a. 4Q.

b. 2Q.

c. Q.

d. Q/2.

e. Q/4.

Q&A Education