GEOLOGY

Detailed explanation-1: -The magnetic field is strongest at the center and weakest between the two poles just outside the bar magnet.

Detailed explanation-2: -A surrounding around a magnet in which source is felt is due to magnetic property of the magnet term as magnetic field.

Detailed explanation-3: -The poles are regions where the magnet is strongest. The poles are called north and south because they always line up with Earth’s north-south axis if the magnet is allowed to move freely.

Detailed explanation-4: -The magnetic field is the area around a magnet that has magnetic force. All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction.

Detailed explanation-5: -The two ends of the bar magnet exert the maximum magnetic force. It is equally strong at the north pole and the south pole. The force exerted by the middle of the magnet is weaker.