Friday
December 26, 2014

Homework Help: Physics

Posted by Lindsey on Monday, March 18, 2013 at 3:26am.

Electric charge flows through a wire, which naturally has a cylindrical cross section. Suppose the charge has a current density given by J = A/r, where A is a constant and r is the distance to the wire's central axis.

How much current flows through the wire if its radius is R?

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