Question
A small bar magnet is placed in a horizontal plane with its axis in the magnetic meridian. Neutral points are obtained on its equatorial line at 12.5 cm from the centre of the magnet. The earth's magnetic field at the place is 0.38 G and the angle of dip is zero.Find the (a)total magnetic field on the axis of the magnet at 12.5 cm from the centre of the magnet.(B)Locate the neutral point when the magnet is turned by 180