A wire of length 4m is bent in the form of a circular coil of single turn. A current 1A is flowing through the wire. If the coil is placed in a mag netic field of 0.4T find the maximum torque experienced by the coil.

A wire of length 880cm is turned into a circular coil of radius 14cm. If a current of 1.0A is passed through the loop. Calculate the magnetic field at its centre.

A square coil of side 10cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^(o) with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experienced by the coil?

A circular coil of radius 3.0cm has 400 turns and carries a current of 1.5A. If axis makes an angle 60^(o) with the uniform magnetic field of 0.5 T in the space. Find the torque acting on the coil.

A square coil of side 10 cm consists of 20 turns and carries a current of 12 A. The coil is suspended vertically and the normal to the plane of the coll makes an angle of 30^@ with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experienced by the coll?