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Old 02-June-2005, 02:49 PM
lyndonashmore lyndonashmore is offline
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Join Date: Apr 2004
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Papageno,
We are still awaiting a description of what you mean by Nearly random motion of electrons in ac.
Cheers,
Lyndon


Quote:
Quote:
Papageno wrote:
Quote:
Originally Posted by lyndonashmore
Quote:
Originally Posted by papageno
If you treat it as a collection of photons, you have lots of electron scattering lots of photons.
So how do we get a density wave - a predictable thing with a calculable frequency if the electrons are all scattering the photons randomly?
As the name says, you use the charge density for the calculations.
If there is an external electric field, the motions are nearly random.
Add up enough nearly random motions and, if they are correlated, you can end up with a not-so-random density oscillation.
What is 'nearly random' is it something superimposed on top of their random motion to make their motion nearly random?