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September 23, 2014

Homework Help: Physics

Posted by jason on Friday, February 10, 2012 at 9:07am.

An aluminum wire of diameter 2.47 mm carries a current of 12.9 A. How long on average does it take an electron to move 10.5 m along the wire? Assume 3.50 conduction electrons per aluminum atom. The mass density of aluminum is 2.70 g/cm3 and its atomic mass is 27.0 g/mol.

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