The magnetic field at the centre of current carrying coil is

The ratio of the magnetic field at the centre of a current carrying coil of the radius a and at distance 'a' from centre of the coil and perpendicular to the axis of coil is

The ratio of the magnetic field at the centre of a current carrying coil of the radius a and at distance 'a' from centre of the coil and perpendicular to the axis of coil is

The magnetic field at the centre of the current carrying coil is

The magnetic field at the centre of the current carrying coil

The magnetic field at the centre of the current carrying coil is

The magnetic field at the centre of the current carrying coil :

The magnetic field at the centre of the current carrying coil

The magnetic field near the centre of a current carrying coil is uniform and ________

Derive an expression for the magnetic field.at the centre of a current carrying coil.