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प्रश्न
A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?
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उत्तर
A freely suspended bar magnet always comes to rest in the North−South direction. The north-facing end of the magnet is its north pole, and the south-facing end is its south pole (as shown in the given figure).
Hence, the unknown poles of a bar magnet can be marked by suspending it freely by a string.
संबंधित प्रश्न
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When a bar magnet is broken; each of the broken part will have ______ pole/poles.
