sci.physics.electromag

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news:5e4a1dbd-41f2-4084-8662-d4ed3b9ed19a@d27g2000prf.googlegroups.com...
> the purpose of this question is to possibly design a practical
> generator using a torrus shaped magnetic field.
>
> because a torrus is circular the field is self shielding and
> concentrates the flux lines at the core. It would be a good place to
> make a current flow if coils in the core can be caused to move
> correctly.
>
> please discuss or correct the following notions:
>
> 1 wires moving in this field must CROSS lines of flux not orbit
> parallel to them?
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true
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>
> 2 when a magnet rotates about it's axis does the field remain
> stationary?
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depends- what geometry are you considering?
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>
> 3 would a wire perpendicular to the core flux lines, rotated radially
> be crossing them and result in voltage?
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Yes
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>
> The question is practical because we already have the means to
> motivate one torrus within the shell of another one.
>
> Thanks for anyone's input.
>
> sj

The geometry that you appear to indicate "moving one torus within another"
seems to imply that the moving torus (a winding?) is moving internally in an
outer torus -that is in the direction of the magnetic field- if so you will
get no generation. Motion perpendicular to the magnetic field will produce a
voltage but there is the problem of moving conductors perpendicular to the
field and yet having them remain within the outer torus.

--

Don Kelly dhky@shawcross.ca
remove the X to answer