what is bar magnet? and write their properties.
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a bar magnet is a rectangular magnet. It is a permanent magnet. It has two poles- North pole and South Pole.
PROPERTIES:
1) It has two poles-North Pole and South Pole.
2) It attracts iron and steel particles.
3) Like poles repel each other, unlike poles attract each other.
4) When freely suspended, North pole of magnet points towards North pole of the Earth.
5) They are permanent magnets and do not lose their magnetism.
6) Magnetic field is maximum at poles, and minimum as we go towards the centre.
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