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Old 10-04-2017, 12:39 AM   #2 (permalink)
The Flounder
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Join Date: Jan 2012
Location: MD

First answer. Voltage is a difference in potential. If there is not path for electron flow then there is no current.

Your second question is not infinite current because there is some resistance to the wire. As the wire heats up that resistance also increases.
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Last edited by The Flounder; 10-04-2017 at 12:42 AM.
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