Can a spinning object be used to change the polarity of a magnet
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Can a spinning object be used to change the polarity of a magnet

[From: ] [author: ] [Date: 12-04-10] [Hit: ]
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If the spinning object has a strong enough magnetic field and rotates fast enough it can demagnetize a magnet. If the spinning magnetic object stops at the correct moment it may reverse the polarity of the magnet.

I fail to see any practical application.

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