# Re: rolled caps (fwd)

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---------- Forwarded message ----------
Date: Tue, 16 Dec 1997 18:03:22 +0500
From: "Alfred A. Skrocki" <alfred.skrocki-at-cybernetworking-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: rolled caps (fwd)

On Mon, 15 Dec 1997 15:36:21 -0500 kevin
<wawa-at-spectra-dot-net> wrote;

> I can't seem to find my information on how to calculate capacitance for
> a rolled capacitor.  Could somebody help?

Hi  Kevin, there is no special equation just for "rolled" type capacitors,
you just use the equation for a flat plate capacitor and use the
appropriate area, realizing that a "rolled" capacitor is simply a long two
plate capacitor rolled up.

0.224 x K x A
C  = ------------- x (N - 1)
D

K = Dielectric constant
D = Distance between plates in inches
A = Area of plate in inches
N = Number of plates

Sincerely

\\\|///
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(  -at- -at-  )
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Alfred A. Skrocki
Alfred.Skrocki-at-CyberNetworking-dot-com
.ooo0   0ooo.
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