BAR MAGNET

A bar magnet is held perpendicular to a uniform magnetic field. If the couple acting on the magnet is to be halved by rotating it, then the angle by which it is to be rotated is (A) 30^(@) A bar magnet is held perpendicular to

Write the following steps in a sequence to locate the neutral points when south pole of a bar magnet is placed towards geographical north. (A) Draw the magnetic lines of force due to the bar magnet by using a magnetic compass (B) locate the north the south poles of a bar magnet by using a magnetic compass (C) placea bar magnet on the white paper such that the south pole of the bar magnet point towards geographic north (D) Note the points the magnetic field where the magnetic compass does not show any particular direction