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Old April 9th 09, 02:41 PM posted to uk.rec.audio
TonyL
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Posts: 212
Default Lowther questions....

Dave Plowman (News) wrote:
In article ,
Keith G wrote:
Also, I've read your comments on suspension amd springiness again,
but still don't know exactly what it is that is directly affected (or
improved, presumably) by 'high flux density'...??


The movement of a conductor carrying a current is influenced by the
flux density acting on it. In other words the higher the flux density
the more it will move. Which is the efficiency of what is a motor of
sorts.


Being pedantic...it is the *force* on a current carrying conductor that is
affected by flux density, from F = q v × B, qv is charge movement =
current, B is flux density

Of course, the velocity of the conductor will often be roughly proportional
to the force in the real world...depending on how it is constrained.