How is it possible that the total amount of mobile charge in a capacitor is the same after charging as before charging.
2007-09-22 14:41:02 · 4 answers · asked by shall_i 1 in Science & Mathematics ➔ Physics
What do you mean by mobile charge in a capacitor? There is no conduction in an ideal capacitor. The charge in a capacitor (the voltage across it), given the dielectric, is determined by the excess of electrons on one side or the other. The capacitor as a whole need not be electrically neutral. An example would be a capacitor, charged or not, perched atop a Van de Graf generator. Ask your question again, making your meaning clearer.
2007-09-22 17:14:55 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
Think in a capacitor as a tank that can accumulate an amount of water. The difference is that the capacitor can store an amount of charge.
The capacitance will be always the same. The difference is that can be discharge, partially charged or fully charged.
As I said before think in a water tank.
Hope it will help.
2007-09-22 14:51:47 · answer #2 · answered by aciccarelli2001 3 · 0⤊ 0⤋
If the capacitor is discharged, there are the same number of electrons on each plate. When you charge it, one plate gets a certain number of extra electrons and the other plate looses the same number of electrons.
2007-09-22 15:52:32 · answer #3 · answered by sojsail 7 · 0⤊ 0⤋
Maybe your mobile program has some problems.
2007-09-22 14:47:49 · answer #4 · answered by kid 2 2 · 0⤊ 1⤋