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Some commonly known facts about magnetism.
Some commonly known facts about magnetism.
(i) Every magnet regardless of its size and shape has two poles called north pole and south pole.
(i) Every magnet regardless of its size and shape has two poles called north pole and south pole.
(ii) If a magnet is broken into two or more pieces then each piece behaves like an independent magnet with somewhat weaker magnetic field. Thus isolated magnetic monopoles do not exist. The search for magnetic monopoles is still going on.
(ii) If a magnet is broken into two or more pieces then each piece behaves like an independent magnet with somewhat weaker magnetic field. Thus isolated magnetic monopoles do not exist. The search for magnetic monopoles is still going on.
(iii) Like magnetic poles repel each other, whereas unlike poles attract each other.
(iii) Like magnetic poles repel each other, whereas unlike poles attract each other.
(iv) When a bar magnet/ magnetic needle is suspended freely or is pivoted, it aligns itself in geographically North-South direction.
(iv) When a bar magnet/ magnetic needle is suspended freely or is pivoted, it aligns itself in geographically North-South direction.
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