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Re: toroid shaped coil capacitance




From: 	Jim Lux[SMTP:jimlux-at-earthlink-dot-net]
Sent: 	Friday, January 02, 1998 11:51 PM
To: 	Tesla List
Subject: 	Re: toroid shaped coil capacitance

> 
> 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.

Surface area of sphere = 4 * pi * r^2