question_answer

The direction of the null points is on the equatorial line of a bar magnet, when the north pole of the magnet is pointing

A)  North                            

B)  South

C)  East                            

D)  West

Correct Answer: A

Solution :

\[{{N}_{I}}\]and \[{{N}_{2}}\]are two null points. And \[{{B}_{m}}=\]Horizontal component of earths? magnetic field B = Magnetic field due to bar magnet.