View Single Post
Old 06-14-2008, 06:59 PM   #15 (permalink)
jamesqf
Master EcoModder
 
Join Date: Jun 2008
Location: Earth
Posts: 5,209
Thanks: 225
Thanked 811 Times in 594 Posts
Quote:
Originally Posted by Xringer View Post
So, if I had a 10,000 farad capacitor charged up to 9 Volts and I connected a 9 ohm resistor across it, I wouldn't get 1 Amp of current flow when I flipped the switch?
No. If you look at instantaneous current flow, it will follow the same exponential decay curve as that voltage plot. You'd have a current flow of many amps for the first fraction of a second, declining to a fraction of an amp after several seconds. A battery would supply nearly constant current/voltage until it's depleted.
  Reply With Quote