## magnets

Discuss Physics and Physics Olympiad related problems here
farhan
Posts: 4
Joined: Thu Apr 05, 2012 12:06 pm

### magnets

A rather funny question is bothering me---- IF TWO OPPOSITE POLES OF TWO MAGNETS ARE PUT NEARER THEY WILL ATTRACT ONE ANOTHER , AND IF SOMETHING IN THE MIDDLE JUST SEPERATE THEM ,THE POLES WILL CREATE A MAGNETIC PRESSURE ON THAT.TO CREATE THIS PRESSURE SOME ENERGY WILL BE CONSUMED NATURALLY . BUT IF THEY R PUT IN THIS MANNER FOR A LONG PERIOD, WILL THOSE MAGNETS WILL LOOSE THEIR ENTIRE ENERGY AND WILL NOT REMAIN MAGNETS ANY MORE?

tanvirab
Posts: 446
Joined: Tue Dec 07, 2010 2:08 am

### Re: magnets

No, magnetism is not dependen on the energy of the magnet. It depends on how the electrons are arranged.

Also, creating pressure does not neceassarily mean loss of energy. To loose energy the pressure has to do some work. How the energy is lost depends on the work is done.

nafistiham
Posts: 829
Joined: Mon Oct 17, 2011 3:56 pm
Location: 24.758613,90.400161
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### Re: magnets

Magnets don't remain magnets only if the electron arrangement is disrupted somehow.
$\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0$
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