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Re: Query on toriod -> ground capacitance
Subject: Re: Query on toriod -> ground capacitance
Date: Fri, 13 Jun 1997 08:51:07 -0500
From: David Huffman <huffman-at-FNAL.GOV>
To: Tesla List <tesla-at-pupman-dot-com>
Don't confuse what the capacitance of a toroid would do on a coil
with what it would do by itself as I did. The capacitance of any
object decreases as it moves away from ground. The capacitance of the
top terminal of a Tesla coil increases because it is moving away from
the shielding effects of the coils top turns. This is Tesla Coiling,
you might as well get use to odd things. ;-)
Dave
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-poodle.pupman-dot-com
> Subject: Query on toriod -> ground capacitance
> Date: Friday, June 13, 1997 12:54 AM
>
> Subject: Query on toriod -> ground capacitance
> Date: Fri, 13 Jun 1997 01:36:23 +1000 (EST)
> From: Rodney Graham Davies <Rodney.Davies-at-anu.edu.au>
> To: tesla-at-pupman-dot-com
>
>
> Hi all,
>
> A friend of mine wanted to know this -
>
> "Why does the capacitance to ground of a toroid increase when you
bring
> it
> up higher ? This is an odd occurrence and is probably not linear."
>
> My own theory is that raising the toroid is practically the same as
> increasing the spacing between to capacitor plates. Here, the
plates are
> the ground plain and the toroid...I could be wrong...
>
> Anyone care to elaborate?
>
> Thanks..
> Rod
>