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August 28, 2016

Homework Help: physics

Posted by lauren on Thursday, April 15, 2010 at 3:22pm.

A thin cylinder of copper has a mass m=50g and is 1 meter long. what is the minimum current that has to flow through the cylinder for it to levitate in a magnetic field of 0.1T.


would i use B=uI/2pi(d)

im confused about what d is and how the mass relates to this...

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