Question -
Answer -
Magnetic moment ofthe bar magnet, M = 0.48 J T−1
(a) Distance, d =10 cm = 0.1 m
The magnetic field atdistance d, from the centre of the magnet on the axis is given bythe relation:
Where,
= Permeability of free space =
The magnetic fieldis along the S − N direction.
(b) The magnetic field at adistance of 10 cm (i.e., d = 0.1 m) on the equatorial line ofthe magnet is given as:
The magnetic fieldis along the N − S direction.