find the magnetic moment of the rod

Posted on 2014-01-16 15:14:00 in Physics by CHARLIE

An iron rod 0.2 m long, 10 mm in diameter and of relative permeability 1000 is placed inside a long solenoid wound with 300 turns / metre. If a current of 0.5 ampere is passed through the rod, find the magnetic moment of the rod.

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