Jim Kelley wrote:
My point is that statements like "more current goes in one end than
comes out the other" are not helpful or illustrative of the phenomenon.
Were you to avoid such statements, you would likely receive less
resistance to the idea you're trying to convey. Understand?

Why would it make any difference to say the magnitude of net current
in is greater than the magnitude of net current out? "Greater than"
and "more" mean the same thing.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil Moore wrote:
I just looked at the paper again and I don't see any files to download.
Where are the files? I only have DOS-based EZNEC. Will it still work?

Sorry Wes, the combination of a small screen, color-blindness, and
cataracts causes me to miss a lot of things. I have successfully
downloaded your zip files now.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil Moore wrote:
Why would it make any difference to say the magnitude of net current
in is greater than the magnitude of net current out?

It's meaningless to characterize it that way in the case of a standing
wave.

73, Jim AC6XG

"Cecil Moore" wrote in message
...
Jim Kelley wrote:
This idea that more current is flowing into one end than flows out of
the other is really not particularly illustrative of anything. It's
just creating misunderstandings, and a reluctance to accept an otherwise
valid argument.

Cecil,
You stated below that the assumption is that forward current is "assumed" to
be a constant magnitude.

I am not sure what that assumption entails because of the following:
In a 1/2 wave dipole the current is not uniform but sinosoidal, if the
current was uniform then the same energy
on the assumption that the maximum current in the center of the dipole is
maintained would be dispenced by a radiator not of wavelength over two but
a radiator of wavelength over 'Pi"
So when you refer to constant current with respect to an
inductance, is the free length of such related to a half wave length or the
same over Pi.? I am trying to look at the problem thru your eyes with
respect to phase change,
wavelength and all that stuff to get a better understanding of your view
point.
Regards
Art



snip

", where the forward current
is assumed to be a constant magnitude through the coil snip

--
73, Cecil, http://www.qsl.net/w5dxp

Art Unwin KB9MZ wrote:

"Cecil Moore" wrote in message
...
Jim Kelley wrote:
This idea that more current is flowing into one end than flows out of
the other is really not particularly illustrative of anything. It's
just creating misunderstandings, and a reluctance to accept an otherwise
valid argument.

Cecil,
You stated below that the assumption is that forward current is "assumed" to
be a constant magnitude.

I am not sure what that assumption entails because of the following:
In a 1/2 wave dipole the current is not uniform but sinosoidal, if the
current was uniform then the same energy
on the assumption that the maximum current in the center of the dipole is
maintained would be dispenced by a radiator not of wavelength over two but
a radiator of wavelength over 'Pi"
So when you refer to constant current with respect to an
inductance, is the free length of such related to a half wave length or the
same over Pi.? I am trying to look at the problem thru your eyes with
respect to phase change,
wavelength and all that stuff to get a better understanding of your view
point.
Regards
Art

Hi Art,

He's talking about it from the perspective of net current as a function
of position. It's not current like we would normally express it; as a
function of time. It's a peculiar kind of bird.

73, Jim AC6XG

On Fri, 30 Jan 2004 13:54:46 -0800, Jim Kelley
wrote:

It's a peculiar kind of bird.

Like the asian chicken-flu.

Tdonaly wrote:
How fast does light travel in copper, Cecil?

Slower than air so the current into and out of a coil cannot
possibly be identical. It takes ~1 nS for light to travel
one foot through air. How on earth can it possibly travel
faster than that through a one foot long copper coil? You
guys are worshiping a religion completely divorced from
scientific fact.
--
73, Cecil http://www.qsl.net/w5dxp



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Jim Kelley wrote:

Cecil Moore wrote:
Why would it make any difference to say the magnitude of net current
in is greater than the magnitude of net current out?

It's meaningless to characterize it that way in the case of a standing
wave.

That's *exactly* what Roy and Tom are measuring. How can it possibly
be characterized any other way?
--
73, Cecil http://www.qsl.net/w5dxp



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Art Unwin KB9MZ wrote:
In a 1/2 wave dipole the current is not uniform but sinosoidal, ...

You are talking about the *net* standing wave current, Art, which
is the phasor sum of the forward current and reflected current. Both
the forward current and reflected current are *traveling* waves, not
standing waves. There's a lot of good information on this web page:

http://webphysics.davidson.edu/physl...semester2.html
--
73, Cecil http://www.qsl.net/w5dxp



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Jim Kelley wrote:
He's talking about it from the perspective of net current as a function
of position.

Because that's exactly what Roy and Tom are measuring. I have
tried to talk to them about the currents that they are not
measuring and it didn't work.
--
73, Cecil http://www.qsl.net/w5dxp



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