Re: Permanent Magnet Motor


Hello.
in this type of cases, I ask myself the question : what is the variation
of potential energy when I rotate the bar through a small angle DeltaAlpa?
Due to the symmetry of the "doughnut"-field this energy is the same for
any angle.
Conclusion : so, why should it budge???
anothe perpetuum mobile down the drain...
pom
It

I can see how the symmetry of the doughnut magnet has the same force at
all
angles. That is why the inner bar magnet has an angle cut out, so that
there is
unequal magnetic forces acting on it. Maybe I'm missing something here.

.

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