A short bar magnet has a magnetic moment of `0.48 JT^(-1)`. Give the direction and magnitude of the magnetic field produced by the magnet at a distance of 10 cm from the centre of the magnet on (a) the axis, (b) the equatorial lines (normal bisector) of the magnet.

In which direction, the magnetic field on the axis at a distance z from the centre of the bar magnet would be ?

Draw magnetic field lines around a bar magnet .

The direction of the magnetic field lines in a region outside a bar magnet is …..

Give definition of 1 T magnetic field.

A short bar magnet of magnetic moment 5.25 xx 10^(-2) JT^(-1) is placed with its axis 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 axis. Magnitude of the earth's fleld at the place is given to be 0.42 G. Ignore the length of the magnet in comparison to the distances involved.

Inside a bar magnet the direction of the magnetic field lines is….. .

Write an expression of magnitude of magnetic field at point lies on equatorial line of a bar magnet.

The magnetic field lines of two bar magnets A and B are shown below : Name the poles of the magnets facing each other .

A bar magnet of magnetic moment 1.5 JT^(-1) lies aligned with the direction of a uniform magnetic field of 0.22 T. (a) What is the amount of work required by an external torque to turn the magnet so as to align its magnetic moment: (i) normal to the field direction (ii) opposite to the field direction? (b) What is the torque on the magnet in cases (i) and (ii)?