Let's say that the battery is an alkaline AA cell
http://www.flickr.com/photos/76342179@N0…
Will the electrons flow trough it? And will the cell get warm, as in a common short circuit?
http://www.flickr.com/photos/76342179@N0…
Will the electrons flow trough it? And will the cell get warm, as in a common short circuit?
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Nothing. Any ordinary wire that long would not be a short circuit.
Don't forget that wire has resistance, although small. But for 40000 km, the resistance is very high.
Eg, #12 wire, as used in house wiring, has a resistance of 1 ohm per 1000 feet. so for 10 ft, that is 0.01 ohm.
but for 40000 km, that is 130000 ohms. With 1.5 volt cell, that is only 11µA, a small current.
Don't forget that wire has resistance, although small. But for 40000 km, the resistance is very high.
Eg, #12 wire, as used in house wiring, has a resistance of 1 ohm per 1000 feet. so for 10 ft, that is 0.01 ohm.
but for 40000 km, that is 130000 ohms. With 1.5 volt cell, that is only 11µA, a small current.
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easier said than done... the circuit always has a given degree od resistance to the electron flow and the longer the circuit the more resistance it will have . It is possible to make the circuit so long in fact that no current will flow...
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You might get one or two electrons to jump off the battery into the wire, but it won't get hot.