A rectangular lop has mass `M` and sides `a` and `b`. An axis `OO'` passes through the centre `C` of the loop and is parallel to side a (lie in the plane of the loop). Then the radius of gyration of the loop, for the axis `OO'` is.
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A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop . If steady current I is established in the wire as shown in the figure ,

A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop . If steady current I is established in the wire as shown in the figure ,

A rectangular loop of sides 20 cm and 10 cm carries a current of 5.0 A . A uniform magnetic field of magnitude 2 T exists parallel to the longer side of the loop. The torque acting on the loop is

A rectangular loop of area 0.4m^(2) is lying in a magnetic field of 4xx10^(-3) tesla. If the plane of the loop is at right angles to the magnetic field, then the magnetic flux passing through the loops will be

A charge q(gt0) moves towards the centre of a circular loop of radius R along its axis. The magnitude of B along the periphery of the loop is

A rectangular loop is placed near a current carrying straight wire as shown in the figure. If the loop is rotated about an axis passing throught one of its sides find the direction of induced current in the loop.

A rectangular loop carrying a current i_(2) situated near a long straight wire carrying a steady current i_(1) . The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will

A rectangular loop carrying a current i_(2) situated near a long straight wire carrying a steady current i_(1) . The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will