Energy Stored by Capacitor Video Lessons

Video Thumbnail

Concept

Problem: A parallel-plate capacitor is connected to a battery and allowed to charge up. Now the battery is disconnected from the capacitor. The separation between the two plates is now decreased (the plates get closer together). What can we say about the potential energy stored by the capacitor? A) The potential energy increases B) The potential energy decreases C) The potential energy remains the same  D) Unable to determine from the information given.

FREE Expert Solution
97% (359 ratings)
Problem Details

A parallel-plate capacitor is connected to a battery and allowed to charge up. Now the battery is disconnected from the capacitor. The separation between the two plates is now decreased (the plates get closer together). What can we say about the potential energy stored by the capacitor?

A) The potential energy increases

B) The potential energy decreases

C) The potential energy remains the same 

D) Unable to determine from the information given.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Energy Stored by Capacitor concept. You can view video lessons to learn Energy Stored by Capacitor. Or if you need more Energy Stored by Capacitor practice, you can also practice Energy Stored by Capacitor practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Juan took 2 minutes and 12 seconds to solve this problem. You can follow their steps in the video explanation above.