Re: Toroid Capacitance calculated without earth-distance?

• To: tesla-at-pupman-dot-com
• Subject: Re: Toroid Capacitance calculated without earth-distance?
• From: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 29 Apr 2000 09:35:35 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List wrote:
> 
> Original Poster: "Ruud de Graaf" <rdegraaf-at-daxis.nl>

> Maybe i missed something, but could somebody tell me how it is possible
that in
> the calculation of the toroid capacitance the distance to ground is ignored.
> IMHO it should be actually inverted proportional.

If the ground is very close, yes, but after some distance from ground
the capacitance tends to a limit value. This happens with any shape,
and the limit is the "body capacitance", or "capacitance to infinity"
of the object.

Antonio Carlos M. de Queiroz

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