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Re: toroid shaped coil capacitance
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To: "'Tesla List'" <tesla@pupman.com>
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Subject: Re: toroid shaped coil capacitance
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From: Tesla List <tesla@stic.net>
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Date: Sat, 3 Jan 1998 18:55:00 -0600
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Approved: tesla@stic.net
From: Gomez[SMTP:gomez@netherworld.com]
Reply To: gomez@netherworld.com
Sent: Saturday, January 03, 1998 4:10 PM
To: Tesla List
Subject: Re: toroid shaped coil capacitance
D.C. Cox wrote:
> Do your reference books contain any equations for the "suface area" of
> both
> a sphere and torus? I'm working on an article for the TCBA and have the
> equations for capacitance but not surface area. Thanks in advance.
>From the "Pocket Ref", 2nd ed, Sequoia Publishing, pg. 323:
surface of a "circular ring":
4(¼!2)*R*r
where r = cross section radius
and R = ring radius
surface area of a sphere:
4¼(r!2)
This handy little book is $10, and worth its weight in gold! Most hardware
stores out here carry it.
-Gomez
--
Gomez: card-carrying mad scientist, extreme fetishist, fiction dabbler,
pyrophiliac, technomage, goth, SF fan, lighting designer, dominant
pervert, and juggler of labels... http://www.netherworld.com/~gomez