Question

Explain about the properties of Magnet????



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Answer 1

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Basic properties of magnets:

1. Attractive Property. A magnet attracts small pieces of iron, Cobalt, nickel, etc. When a magnet is brought near a heap of iron fillings, the ends of the magnet show the greatest attraction. These ends, where the magnetic attraction is the maximum, are called poles of the magnet. Thus every magnet has two poles.
2. Directive Property. When a magnet is suspended or pivoted freely, it aligns itself in the geographical north south direction. The pole of the magnet which point towards the geographical North is called the north-seeking or north (N) pole. The other pole which points towards the geographical South is called the South-seeking or South (S) Pole of the magnet.
3. Likes pole repel and unlike poles attract. If the N-pole of a magnet is brought near the N-pole of a suspended magnet, the poles are found to repel each other two poles also repel each other. In contrast, N- and S-poles always attract each other. This action can be described by the law of magnetic poles which states that like magnet poles repel, and unlike magnetic poles attract each other.
4. Magnetic magnetic poles always exist in pairs. If we try to isolate the two poles of a magnet from each other by breaking the magnet in the middle, each part is found to be a magnet with N and S poles at its ends. If we break this parts further, each part again is found to be a magnet. So unlike electric charges, magnetic monopoles do not exist. Every magnet exist as a dipole.
5. Magnetic induction. A magnet induces magnetism in a magnetic substance place near it. This phenomenon is called magnetic induction. When N-pole of a powerful magnet is placed close to soft iron bar, the closer and of the bar becomes S-pole and the farther end N-pole as a result the magnet attracts the iron bar. Thus induction precedes attraction.