REFLECTOR:Buss material

[Douglas Holub]

I'll admit I'm a little confused. I'm an electrical engineer, and I remember
learning that electrons move mostly on the surface of a conductor. I thought
stranded wire could carry more current than solid wire for that reason. But
I looked at Belden's web site yesterday, and that doesn't seem to be true.
So out of curiosity I looked in some texts and on the web and saw that, at
least electrostatically speaking, free electrons will be mostly on the
surface of a conductor. I'm still not sure what happens when the current
starts flowing.
http://www.physics.ubc.ca/~janis/Courses/354/lectures/PHYS354.lect7.pdf

One spelling note: a buss is a kiss.  A bus carries people or electrical
current.

Doug

----- Original Message ----- 
From: "Dave Black" <dvblack@comcast.net>
To: <reflector@tvbf.org>
Sent: Monday, April 26, 2004 8:51 PM
Subject: Re: REFLECTOR:Buss material


> David,
>
> > It must be a misunderstanding. The only time I've heard of the skin
> > effect - were it's the outer surface that carries the current - is at
very
> > high frequencies.
>
> That's my understanding as well.
> At DC or low AC frequencies, it's the wire cross-sectional area that
matters.
> Skin effect only comes into play at high (RF) frequencies. Might be an
issue
> for our transponder antenna, but not for our electrical buss.
>
> Dave Black
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