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Jan20-13, 10:13 AM
P: 247
Quote Quote by f95toli View Post
You obviously have to connect the two plates first, but once the capacitor is charged you can disconnect it and it will (in an ideal world) maintain its charge indefinitly.
Do we ? From what I recall the plates are connected to the oppositely charged terminals of a battery and that is it .

We don't have to complete the circuit ...