Question 15: NCERT Solutions for 12th Class Physics: Chapter 5-Magnetism and Matter

A short bar magnet of magnetic moment 5.25 × 10^-2 J T^-1 is placed with its a×is perpendicular to the earth’s field direction. At what distance from the centre of the magnet, the resultant field is inclined at 45° with earth’s field on
(a) its normal bisector and
(b) its a×is. Magnitude of the earth’s field at the place is given to be 0.42 G. Ignore the length of the magnet in comparison to the distances involved.