Hey everyone, I\'m having trouble understanding a multiple choice question. Ifso
ID: 1738404 • Letter: H
Question
Hey everyone,I'm having trouble understanding a multiple choice question. Ifsomeone could please provide me the answer and thoroughexplanation, I'd greatly appreciate it. Thanks so much!
-A
A battery completely charges a parallel-plate air-gap capacitorwith moveable plates. The battery is then removed and theplates are then quickly pulled apart. (The amount of chargeon the plate stays constant with the battery disconnected). As the plates are being separated, what happens to the potentialdifference between the plates?
a) It increases.
b) It remains constant.
c) It decreases.
d) There is no way to tell from the information given.
Explanation / Answer
since the charges Q on the plates stay constant, the electric fieldE between the plates also stays constant. the potential difference between the plates = E*d now d increases, so the potential difference also increases. answer: a)