swansont Posted December 8, 2009 Share Posted December 8, 2009 Now, I was considering that the magnetic dipole (an electron) could be held in place in a permanent magnet Earnshaw's theorem prevents that (at least for Maxwell's equations as we currently know them, but I think it would still apply) http://en.wikipedia.org/wiki/Earnshaw's_theorem Link to comment Share on other sites More sharing options...
Mr Skeptic Posted December 8, 2009 Author Share Posted December 8, 2009 Earnshaw's theorem prevents that (at least for Maxwell's equations as we currently know them, but I think it would still apply) http://en.wikipedia.org/wiki/Earnshaw's_theorem That really does not apply. The electrons in a permanent magnet are not stationary. Link to comment Share on other sites More sharing options...
GenerationE Posted December 9, 2009 Share Posted December 9, 2009 No, They would not violate the conservation of Energy, for the same reason that electric monopoles don't. The field lines are circular for a dipole not a monopole. The acceleration in the the direction of a field, given that the field is not symmetrically radial will cause you to get off of the field lines. Even with a magnetic dipole it is impossible to move in the the same direction of the field lines forever because you would eventually hit the dipole. Link to comment Share on other sites More sharing options...
swansont Posted December 9, 2009 Share Posted December 9, 2009 That really does not apply. The electrons in a permanent magnet are not stationary. Ah, I misunderstood. I thought you were talking about a free electron being held in place by a magnet. Link to comment Share on other sites More sharing options...
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