A magnatized wiee of magnetic momentum m and length l is bent in a form of a semicirle of radius r. The new magnetic momentum is
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The magnetised wire of moment 'M' and length 'l' is bent in the form of semicircle of rdius 'r'. then its magnetic moment is (1)2Mπ(3)Mπ(2)2M(4)0(zero).
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