A long circular tube of length 10 m and radius 0,3 m carries a curre 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 Te loop of resistance 0.005 ohm and of radius 0.1 m is placed inside the tube with its axis coinciding with the axis of the tube. The current varies as il,cos (3000) whic me tube. The current varies as I=1cos (3000) where I is constant. If the magnetic moment of the loop is Nul, sin (3001), then 'N' is (JEE 2011) 145