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induction of heat

Ankit Gupta
in Physics

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can we produce heat by rubbing same poles of magnet like north and north ?

 

In some cases, certainly. It's usually done with a magnetic field and a conductor, but you could get eddy currents in conductive magnetic materials.

but my brother told me that magnetic field can never do work

 

It doesn't. A changing magnetic field induces an electric field, which causes the current. The electric field does the work.

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