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Question
North pole of a magnet can be identified by
Options
Another magnet having its poles marked as North pole and South pole.
Another magnet no matter whether the poles are marked or not.
Using an iron bar.
Using iron filings.
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Solution
Another magnet having its poles marked as North pole and South pole.
Explanation:
If another magnet with the north pole is brought closer, the first magnet will repel it, and thus North pole can be identified.
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