Why does a compass needle get deflected when brought near a bar magnet?
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hey mate
Ans: The needle of a compass is a small magnet. That's why when a compass needle is brought near a bar magnet, its magnetic field lines interact with that of the bar magnet. Hence, a compass needle gets deflected
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Due to the very weak magnetic field of the earth, compasses use light magnetized metal needles mounted on low-friction pivots.
Since the compass needle is a tiny magnet, its direction can be altered very easily by any magnet placed close enough to it. In fact, as you move the magnet around the compass, its needle will no longer point at the North magnetic pole, but it will follow your magnet. Based on the orientation of your magnet, one of the needle tips will be attracted and the other repelled.
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