Re: Electrets and Magnets (fwd)

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Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Mon, 26 Sep 2005 10:17:37
From: David Dameron <ddameron@xxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Electrets and Magnets (fwd)

Hi Stork and all,
You need some moving charges and a magnetic field, the first is typically a
current. But here you have charges at the "poles" of the electret, and the
charge velocity is from its motion. An appropriate charged capacitor should
work as well.
-Dave D.
At 09:09 AM 9/26/05 -0600, you wrote:
>Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>9-11-05
>
>I've read that when an electret pole is move linearly across a pole of a 
>permanent magnet that a perpendicular force is exerted on the electret. 
>  This force is not attraction or repulsion, but exerted 90 degrees from 
>the path of movement of the electret.
>
>If so, could this this just be a different face of our old friend the 
>Lorentz force which is applied to steady state electric and magnetic 
>fields?  But, isn't the Lorentz force applied to a conductor with a 
>current within a magnetic field?  So where's the current with the 
>permanent and electret?  Maybe the Lorentz force doesn't need a current 
>conductor.  Maybe the Lorentz force is a "field" phenomenon.  Perhaps an 
>unrecognized quantum effect.