A circular coil of 60 turns and radius 4 cm carries current of 1 A . How much work will be done in rotating the coil through `90^(@)` . It is suspended freely in uniform magnetic field `0.2 T`.

A circular coil of 50 turns and diameter 8 cm carries a current 2 ampere. How much work will be done in rotating a coil through 180^@ when suspended in a uniform magnetic field 1 wb//m^2 .

A circular coil of 50 turns and radius 0.2 cm carries a current of 12 A. Find magnetic field at the centre of the coil.

A circular coil of radius 1*5 cm carries a current of 1*5A . If the coil has 25 turns , find the magnetic field at the centre.

The radius of a circular coil of 100 turns in 5 cm and it carries a current of 10 A. What torque will act on the coil when its plane is kept at 30^(@) with a uniform magnetic field of 0.01 T?

A circular coil of radius 1*5cm carries a current of 1*5A . If the coil has 25 turns , find the magnetic field at the centre.

A circular coil of 100 turns and having an effective radius of 5cm carries a current of 0*1 ampere. How much work is required to turn it in an external magnetic field of 1*5 weber//m^2 through 180^@ about an axis perpendicular to magnetic field. The plane of the coil is initially perpendicular to the magnetic field.

A circular coil of 100 turns has an effective radius of 0.05 m and carries a current of 0.1 A. How much work is required to turn it in an external magnetic field of 1.5 Wb m^-2 through 180^@ about an axis perpendicular to the magnetic field. The plane of the coil is initially perpendicular to the magnetic field.

A circular coil of 100 turns has an effective radius of 0.05 m and carries a current of 0.1 A. How much work is required to turn it in an external magnetic field of 1.5 Wb m^-2 through 180^@ about an axis perpendicular to the magnetic field. The plane of the coil is initially perpendicular to the magnetic field.