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Tom Watson Tom Watson is offline
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Posts: 692
Default ee's please reply - (or those who think think they may know)

I've had a bit of time to refine my understanding of the real world
problem that engendered this inquiry.

We are trying to run a carrier in a trough that is 1/2" wide by 3/4"
deep. This carrier will feed five LED arrays that are composed of 54
Watts each.

The maximum length of the run is 100 feet.

I was worried that the wire would have to be of such a size that it
would not fit, and, more importantly, the connectors would not fit, in
the available volume.

It seems to be the case that I need not have worried.

BTW - my apologies for the apparent disparagement of engineers in my
post. I was actually responding to one person, but tarred the
profession with the same brush.

I have the greatest respect for engineers and deal with them on a more
or less daily basis.

That one guy ****ed me off and I shot back at him. My apologies to
those who were caught in the crossfire.


Regards,

Tom Watson

tjwatson1ATcomcastDOTnet (real email)

http://home.comcast.net/~tjwatson1/On Fri, 15 Jun 2007 19:43:14 -0400,
Tom Watson wrote:

I had a conversation with a friend of mine today who has a masters in
electrical engineering.

This degree was conferred by the same school that I went to
(Villanova) about a hundred years ago, so I must inherently trust him.

Yet...

The question that I asked him, which I thought to be simple enough,
was - do the electrons travel down the circumference of the wire, or
do they travel through the core of the wire?

He told me that that is an unknown.

This was very surprising to me as I thought that it would be easily
tested.

Could we not create a wire of a core of inert material and coat it
with a conductor and measure the difference between a wire of the pure
element and that of the coated variety?

This seemed to be not within his reckoning.

The reason that it is important, to me, is that, if the electrons only
travel on the circumference, that circumference may be folded into a
smaller section than that described by the original, and wires would
not have to be so thick.

Would y'all please try to help me out of this conundrum?

Is my friend a poseur?





Regards,

Tom Watson

tjwatson1ATcomcastDOTnet (real email)

http://home.comcast.net/~tjwatson1/