A long circular tube of length 10 m and radius 0 3 m carries a current I along its curved surface as shown A wire loop of

Question

A long circular tube of length 10 m and radius 0 3 m carries a current I along its curved surface as shown A wire loop of resistance 0 005 ohm and of radius 0 1 mis placed inside the tube with its axis coinciding with the axis of the tube The current varies as I I cos 300 t where I is constant If the magnetic moment of the loop is N I sin 300 t then N is JEE 2011 f o I

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