Question

why does a compass needle get deflected when a magnet is brought near it? explain in term of the magnetic field.

Answer 1

Compass needle gets deflected in presence of bar magnet because it is made like that to reflect in presence of magnetism. It gets deflected on earth towards north also because of a huge magnetism of earth. A compass points towards the North Pole, which is magnetic.



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Answer 2

compass works on the property of magnetism. Actually poles of earth act as a poles of a large magnet. Thus compass is able to tell u which side is north and from that u can know other direction.
But we u bring a magnet near a compass it acts on the compass needle so the need deflects when a magnet is brought near it.
Hope it helps u.
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