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Science > Physics |
| User: |
"" |
| Date: |
11 Apr 2007 12:31:28 PM |
| Object: |
Energy issue in free electrons |
In a piece of a metallic conductor, the conduction(free) electrons
move randomly in all directions at speeds of the order of 10^6 m/s.
This means they have a high kinetic energy. In that case, what happens
to their potential energy, or is the law of conservation of energy
violated in this case?
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| User: "Uncle Al" |
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| Title: Re: Energy issue in free electrons |
11 Apr 2007 01:58:17 PM |
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"vikraman.choudhury@gmail.com" wrote:
In a piece of a metallic conductor, the conduction(free) electrons
move randomly in all directions at speeds of the order of 10^6 m/s.
What is their mean free path?
This means they have a high kinetic energy.
Is that true if they are oscillating in a potential well? Orbiting in
an electrostatic field?
In that case, what happens
to their potential energy, or is the law of conservation of energy
violated in this case?
Yeah, conservation of mass-energy goes down the tubes. Time is no
longer homogeneous, the sun fluctuates into non-existence, and
Enviro-whiners obtain their desired Global Cooling.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2
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| User: "Androcles" |
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| Title: Re: Energy issue in free electrons |
12 Apr 2007 05:41:35 AM |
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"Uncle Al" <UncleAl0@hate.spam.net> wrote in message =
news:461D2FC9.D53D3F29@hate.spam.net...
[snip crap]
1: GPS works.
2: GR doesn't.
3: Ignorant Tord in the river of *****.
http://www.androcles01.pwp.blueyonder.co.uk/GPS/GPS.htm
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| User: "Eric Gisse" |
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| Title: Re: Energy issue in free electrons |
11 Apr 2007 04:34:32 PM |
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On Apr 11, 9:31 am, "vikraman.choudh...@gmail.com"
<vikraman.choudh...@gmail.com> wrote:
In a piece of a metallic conductor, the conduction(free) electrons
move randomly in all directions at speeds of the order of 10^6 m/s.
At what temperature? Drift velocity spans an order of magnitude or 5,
as does the mean free path.
This means they have a high kinetic energy. In that case, what happens
to their potential energy, or is the law of conservation of energy
violated in this case?
Why would it be violated? I dump 1/kT energy into the atoms, and
imagine my surprise when _they go faster_.
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