sir how to change the electro magnets? which magnet power was high,electro magnet or permanent magnet?
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sir how to change the electro magnets? which magnet power was high,electro magnet or permanent magnet?
Change them in what way?
north south poles in magnet sir
Is this homework?
i means suddenly example for bar magnet one side is A another side is B ok. now A side is north pole and B side is south pole. am i ask that i need suddenly changes A will be south and B will be north pole. can u tell me procedure plz
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