Re: Simple electricity, and yet.....!


"Timo Nieminen" <timo@xxxxxxxxxxxxxxxxx> wrote in message
news:Pine.LNX.4.50.0611170852230.31514-100000@xxxxxxxxxxxx
| On Thu, 16 Nov 2006, Sorcerer wrote:
|
| > "Timo A. Nieminen" <timo@xxxxxxxxxxxxxxxxx> wrote:
| > | On Thu, 16 Nov 2006, xray4abc wrote:
| > | >
| > | > Yes. I have always thought that the electric field created
by
| > | > the power source was "pushing" the electrons.
| > | > It seems that there is something wrong with this picture of the
| > | > process.
| > |
| > | What makes aircraft fly at a constant velocity? Thrust = drag. What
makes
| > | a spaceship travel at constant velocity? Thrust = drag must still be
true,
| > | but drag = 0, therefore, one can conclude what?
| > |
| > | You're specifically considering the case of R=0. Why should any force
be
| > | needed to keep the electrons moving?
| > |
| > | From a circuit analysis viewpoint, it really is trivial. From a
Maxwell
| > | viewpoint, it's less trivial. If you want it to be an educational
problem,
| > | figure out how Maxwell gives you the circuit theory picture. Just keep
in
| > | mind that circuit theory general treats wires as R=0, while in
Maxwell,
| > | their conductivity is not infinite.
| >
| > What limits the beam current in a CRT?
| > Thust equals drag?
| > Permittivity?
| > None of the above?
| > It really is trivial.
|
| What? You don't know the answer? You, the former "electronic engineer,
| professionaly", need me to tell you? If you do know, are you so desperate
| for attention that you're reduced to trolling on threads about circuit
| theory?

So Dork Van de merde found one typographical error and that's enough
to make me a troll?


| It's essentially the same as the the PEC shorting a non-ideal power supply
| as asked about by the OP: the current is mostly limited by the power
| supply (in this case, the electron gun, its power supply etc).


What? You don't know the the answer? You, the the so-called
"Ph.D. from the the Outback, unprofessionally", need me to tell you?
If you do know, are you so desperate for attention that you're reduced
to trolling on threads about typographical errors?

Limited by the electron gun... ridiculous.
I'm specifically considering the case of R=0.

You'll be saying lightning is limited by the the resistance of the the
lightning rod next. You are dumber than ***, Nieminen, and
YOU are the the troll. *** off, you don't know the the answer
and you certainly don't understand circuit theory.
Androcles


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