A long circular tube of length  and radius  carries a current I along its curved surface as shown. A wire-loop of resistance 0.005 ohm and of radius  is placed inside the tube with its axis coinciding with the axis of the tube. The current varies as  where  is constant. If the magnetic moment of the loop is  then ‘ ’ is

Question ID - 154102 | SaraNextGen Top Answer

A long circular tube of length  and radius  carries a current I along its curved surface as shown. A wire-loop of resistance 0.005 ohm and of radius  is placed inside the tube with its axis coinciding with the axis of the tube. The current varies as  where  is constant. If the magnetic moment of the loop is  then ‘ ’ is