Question

Where are the poles of a bar magnet located?
(A) At the extreme ends
(B) At the middle of the bar
(C) A small distance prior to the extreme ends
(D) Poles don’t exist for a bar magnet

Answer 1

The magnetic poles located at the end that possess the strongest external magnetic field. When the bar magnet is suspended in the earth’s natural magnetic field, then it arranges themselves in the north south ole direction. The like poles of the magnet repel each other and the unlike poles attract each other.

Complete step by step answer:
The bar magnet is a commonly used rectangular magnet in which its poles can be easily visualized. There are two poles of the bar magnet as the North Pole and the South Pole. These poles are located at both the ends of the bar magnet but they are not present at the extreme end. They are located at a small distance from the extreme ends of the bar magnet.

This can be observed that when the iron fillings are brought close to the bar magnet, they are attached to the ends of the bar magnet but not in the centre part of the magnet. This is because this part constitutes the poles that have the maximum and the strong magnetic field lines in it. The magnetic field lines originate and end only in the pole parts.

Thus, the option (C) is correct.

Note: Outside the magnet, the field lines are transmitted from the North Pole to that of the South Pole and inside the magnet, the field lines act opposite to the outside as it moves from the South Pole to that of the North Pole. The magnetic field lines do not originate in the centre part of the magnet.