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cable length needed to create phase shift?
On Thu, 30 Oct 2003 22:09:17 +0000 (UTC), (Jay
Kadis) wrote:
At the velocity electrons travel in metal (nearly 186,000 miles/sec or almost a
trillion (10^9) feet/sec), that length difference wouldn't matter.
Strangely enough, electrons themselves only travel about as fast
as a person can walk. A signal / impulse travels essentially in the
insulators of a cable, typically at about .7C.
At least, this is the number that several knowledgable folk on
this board accept for typical cables. In a recent thread, I
dredged a number of .1C out of ancient memory, and was soon
disabused of the idea.
There's also something called drift velocity, but I've not
seen it translated down to my level of understanding.
Curiouser and curiouser...
Chris Hornbeck
new email address
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