Re: Superconducting magnifier

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Superconducting magnifier
From: Tesla List <tesla-at-stic-dot-net>
Date: Sun, 9 Nov 1997 15:25:42 -0600
Approved: tesla-at-stic-dot-net

From: 	Jim Lux[SMTP:jimlux-at-earthlink-dot-net]
Sent: 	Sunday, November 09, 1997 11:24 AM
To: 	Tesla List
Subject: 	Re: Superconducting magnifier

Of course, the magnetic fields around a Tesla coil aren't all that big, and
for that matter, you are deliberately limiting the E field as well
(otherwise the insulation breaks down). The whole thing in a TC is to
maximize Volts while minimizing Volts/meter. ( except at the discharge
electrode)



> First of all, thanks for the physics. But haven't I already mentioned
> critical magnetic field in my post? I guess you were just trying to
remind me.
> 
> Although I am no expert in this field, I believe you are not too, since
you
> used the qualitative term "intense". May I ask you how much is intense,
half
> a Tesla? a Tesla or 10 Tesla? You are simply not talking science.
> 
> Since I am no expert, I asked a teacher in my physics department. This
> gentle man used to work with a cyclotron and knows very well about other
> particle accelerators. I believe he is qualified to comment. As he
> explained, a tesla coil, a solenoid, as the lenght of the coil increases,
> the magnetic field alongside the coil decreases, because the magnetic
field
> "spreads". He also said that tesla coil don't generate enough magnetic
> field. He is right, since a tesla coil is a AIR CORE solenoid. 
> 
> If you are not convinced yet, try this (my) experiment at your risk: Get
a
> secondary, connect it to an arc welder, put the coil in a horzontal
position
> and lay some iron nails on the floor around it. Turn on the welder, and
> observe careful if any nails around coil (the position where you place
the
> primary) move at all.
> 
> Since the primary and secondary are closely coupled, their seperated
> distance is small, even there is thousands A of currrent in the
secondary,
> there is not enough magnetic field to reach the primary and renders it
> useless. What about the secondary inside the primary? Since we use liquid
> nitrogen as insulator, the distance between them will be even smaller.
After
> all this explaination, why don't you figure the answer out yourself? BTW,
> how many tesla does your (or the others') magnifier generate?
> 
> And that's the physics for you.
> 
> 
> Ted
> 
> 
>