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April 21, 2014

Homework Help: Physics. Free electron density, please help!

Posted by samantha on Wednesday, November 21, 2012 at 11:38pm.

A length of wire has a radius of 3.00 10-3 m and a resistance of 0.200 Ω. When the potential difference across the wire is 10.0 V, the electron drift speed is found to be 2.98 10-4 m/s. On the basis of these data, calculate the density of free electrons in the wire.

Your help is much appreciated! :)

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