Skip to main content
7 events
when toggle format what by license comment
Aug 12, 2020 at 22:35 vote accept Bøbby Leung
Aug 12, 2020 at 22:35 vote accept Bøbby Leung
Aug 12, 2020 at 22:35
Oct 1, 2018 at 11:35 comment added Alfred Centauri @BøbbyLeung, to charge a capacitor, the external circuit, e.g, a battery essentially 'pumps' electrons from one plate of he capacitor to the other. This takes work (moving the electrons against the increasing electric field) and the work done is stored in the energy of the electric field between the two plates.
Oct 1, 2018 at 5:05 comment added Bøbby Leung @AlfredCentauri Thanks for the answer and comment. You mentioned capacitor stores energy. May I ask to confirm, is it because the charge Q on one plate and the charge -Q on the other plate are energy carriers or carried energy from e.g. a battery?
Oct 1, 2018 at 1:02 comment added David White @AlfredCentauri, I certainly realize that. I was trying to give the OP a physical representation that was a good analogy, so he could hopefully "connect the dots".
Sep 30, 2018 at 18:49 comment added Alfred Centauri To be sure, capacitors do not store electric charge; with charge $Q$ on one plate and charge $-Q$ on the other plate, the net charge stored in a capacitor is zero. A charged capacitor stores energy and not electric charge.
Sep 30, 2018 at 18:24 history answered David White CC BY-SA 4.0