February 21, 2017

Homework Help: Physics

Posted by Mary on Thursday, September 27, 2007 at 11:06pm.

A piece of copper wire has a resistance per unit length of 5.95 10-3 /m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.200 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.

In this question do I use the following formula:

F = /q0/v(permeability of free space x I / 2piR) sin theta

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