A circular coil of n turns and radius r carries a current I. The magnetic field at the center is

A circular coil of n turns and radius r carries a current I. The magnetic field at the centre is

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 having N turns and radius r carries a current I. It is held in the XZ plane in a magnetic field Bhati . The torque on the coil due to the magnetic field is :

A circular coil having N turns and radius r carries a current I. It is held in the XZ plane in a magnetic field Bhati . The torque on the coil due to the magnetic field is :

A circular coil having N turns and radius r carries a current I. It is held in the XZ plane in a magnetic field Bhati . The torque on the coil due to the magnetic field is :

A circular coil of length L and radius r carries a current I. It provides a magnetic field of induction B at its center. Now the coil is bent sharply so as from a circular coil of n turns of rqual radii. The new induction at the center of this coil is

A circular coil of radius R carries an electric current i. The magnetic field at a point on the axis at a distance x from the centre of the coil (xgtgtR) varies as

A circular coil of a wire containing 100 turns each of radius 2cm carries a current of 0.20A. The magnetic field at the centre of the coil is…..