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September 19, 2014

Homework Help: physics

Posted by rick on Monday, February 11, 2008 at 10:25pm.

A piece of copper wire has a resistance per unit length of 6.45*10-3 /m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.140 m. The ends of the wire are connected to a 12.0 V battery. Find the magnetic field strength at the center of the coil.

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