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Jim Kelley wrote:
Or maybe it was just too hard for you.

It was impossible for anyone to solve without having
a math model for the sources.

How about a simpler problem then:

This is not simpler - it is contradictory. It provides a
constant power source with nowhere for the source power
to go during steady-state. If you change the source to
a Thevenin equivalent then it can be solved.

XMTR--X--one second long lossless feedline---infinite ohms
PS=100W

Please explain how the XMTR can supply 100W during steady-
state? Where does the 100 joules/sec go? As stated, this
problem, like your other one, is impossible to resolve.

If you change the source to a Thevenin equivalent 141.42V
and 50 ohm source impedance and specify Z=50 ohms feedline
impedance then the problem becomes solvable. The answer is
that 200 joules exist in the feedline and, contrary to what
W7EL states, will dissipate in the source resistance after
the source voltage goes to zero. Note the source resistance
is the only resistance in the entire circuit.
--
73, Cecil http://www.qsl.net/w5dxp

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On Fri, 01 Sep 2006 12:49:43 -0700, Jim Kelley
wrote:

Richard Clark wrote:

On Fri, 01 Sep 2006 11:03:39 -0700, Jim Kelley
wrote:


How many Joules are stored in the transmission line?


100

That may be the correct solution to a somewhat different problem.


Hi Jim,

So, with a wrong answer (and a direct answer at that, imagine!). Do I
warrant the "correct" answer?

73's
Richard Clark, KB7QHC

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Richard Clark wrote:
So, with a wrong answer (and a direct answer at that, imagine!). Do I
warrant the "correct" answer?

With Jim's lackadaisical approach to conservation of
energy, there is no "correct" answer. He didn't even
tell you what the forward and reflected power readings
were. He also doesn't seem to realize that a 100W XMTR
cannot force any power into an infinite load. I am trying
to apply some boundary conditions that will remedy that
problem.

So Richard, what do you think happens when a constant
power output XMTR is facing an infinite load? What
happens when an irresistible force meets an immovable
object?
--
73, Cecil http://www.qsl.net/w5dxp

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On Fri, 01 Sep 2006 22:13:32 GMT, Cecil Moore
wrote:
With Jim's lackadaisical approach to conservation of
energy, there is no "correct" answer.

A long winded answer for you don't know. Talk about lackadaisical
with all the fluff cut off the end of this too.

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Richard Clark wrote:
Cecil Moore wrote:
With Jim's lackadaisical approach to conservation of
energy, there is no "correct" answer.

A long winded answer for you don't know.

Only a fool would venture an answer under the boundary
conditions defined by Jim. 100 watts into an infinite
load is impossible. The answer is the same as the
number of angels that can dance on the head of a pin.
--
73, Cecil http://www.qsl.net/w5dxp

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On Fri, 01 Sep 2006 22:49:12 GMT, Cecil Moore
wrote:

Richard Clark wrote:
Cecil Moore wrote:
With Jim's lackadaisical approach to conservation of
energy, there is no "correct" answer.

A long winded answer for you don't know.

Only a fool would venture an answer under the boundary
conditions defined by Jim.

a lackadaisical 14 word apology replacing a 3 word admission of not
knowing - and across two postings. No doubt this will be followed by:
1. more lackadaisical postings;
2. more lackadaisical words;
3. no answer.

It's curious that you haven't denied that 100 Joules is NOT the right
answer! At least Jim went that far, if no further. In a two man race
you have managed to put yourself in third place.

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Cecil Moore wrote:

Richard Clark wrote:

Cecil Moore wrote:

With Jim's lackadaisical approach to conservation of
energy, there is no "correct" answer.


A long winded answer for you don't know.


Only a fool would venture an answer under the boundary
conditions defined by Jim. 100 watts into an infinite
load is impossible. The answer is the same as the
number of angels that can dance on the head of a pin.

I may be a relative simpleton here, but the transmitter won't know that
for 2 seconds, Cecil. I bet some power may manage to get into the
transmission line.

tom
K0TAR

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Richard Clark wrote:
It's curious that you haven't denied that 100 Joules is NOT the right
answer!

I also haven't denied that 100 angels cannot dance on
the head of a pin for exactly the same reasons.
--
73, Cecil http://www.qsl.net/w5dxp

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Tom Ring wrote:
I may be a relative simpleton here, but the transmitter won't know that
for 2 seconds, Cecil. I bet some power may manage to get into the
transmission line.

Of course, I said that it was possible from a Thevenin
equivalent circuit. But Jim said the XMTR was putting
out 100 watts into an infinite load during steady-
state, obviously an impossible mental boundary condition.

A Thevenin equivalent circuit will supply 100 joules/sec
into the feedline and then stop supplying power. That
is not an impossible mental boundary condition. I'm
ready to discuss that configuration.
--
73, Cecil http://www.qsl.net/w5dxp

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On Sat, 02 Sep 2006 02:12:19 GMT, Cecil Moore
wrote:

Richard Clark wrote:
It's curious that you haven't denied that 100 Joules is NOT the right
answer!

I also haven't denied that 100 angels cannot dance on
the head of a pin for exactly the same reasons.

So, you have a reason to agree that 100 Joules is the right answer?

Boy, talk about getting respect for a straight answer to a straight
question. I'll let you two get back to your burlesque act. (I would
have called it vaudeville, but its like waiting for the stripper's
pasties to fall off.)