Homework Help: Physics

Posted by Mary on Wednesday, September 26, 2007 at 1:08am.

A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 6.5 10-5 T. How far is the point from the wire?

Physics - drwls, Wednesday, September 26, 2007 at 1:22am
Look up Ampere's law for the magnetic field around a straight wire.

You can find it at

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html

Solve for the unknown distance, r. Show your work if you need additional assistance.

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