What is magnetic dipole? Obtain the an expression for strength of magnetic field at a distance r from its centre on the axial line of the dipole.

What is a magnetic dipole? Obtain for the strength of magnetic field at a point at distance r from its centre on axial line. Find the strength of the field in special case, when the length of the magnet is very small as compared to the distance r.

What is a magnetic dipole? Obtain for the strength of magnetic field at a point at distance r from its center on eqitorial line. Find the strength of the field in special case, when the length of the magnet is very small as compared to the distance r.

Derive an expression for the magnetic field intensity at a point on the equatorial line of the magnetic dipole.