FYI -electrical charges traval at a fairly low velocity. If you had a battery and wire completing a theoretical circuit with a pretty large current flow (no resistance), and you could see the electrons travel, it would take a pretty good while for them to traval from one end of the wire to the other. You might even have a hard time seeing them move!
In AC circuits the electrons don't really go anywhere. They just push each other back and forth (60 times a second) as they try to maintain a uniform spacing.
Sorry for the hijack. I have been gone for five days and I just really enjoy this stuff!
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