Discussion in 'General Electronics Chat' started by TAKYMOUNIR, Feb 4, 2013.
how the capacitor store energy
....Is that the whole question? Having over 200 posts, I expected you'd have learned by now that we need fully-worded, clear questions in order to give good answers.
Anyway, capacitors do not store energy. Simple as that. Instead, they store charge.
There's a nice little write-up here: http://www.physics.sjsu.edu/becker/physics51/capacitors.htm
I think my question is clear ,any way thanks,but the capacitor store energy=1/2 cv^2
That would seem to an overly restrictive definition.
Capacitors actually store both, of course. They store energy by storing charge as determined by the voltage applied to transfer the charge.
I stand corrected.
Not quite. Charge, voltage and capacitance are all inter-related, much like Ohm's Law.
Hence the energy stored in a capacitor of a given capacitance C can can be determined entirely from charge Q,
or from voltage V,
Yup, I remember seeing that before, specifically the last one. Not really sure what I was thinking.
Guess it's been too long since I did any math relating to electronics!