Re: Formula for self C of a Coil (not Medhurst)

• To: tesla-at-pupman-dot-com
• Subject: Re: Formula for self C of a Coil (not Medhurst)
• From: "Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 25 Apr 2000 19:28:21 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

>
> Original Poster: "Robert Jones" <alwynj48-at-earthlink-dot-net>

Hi Bob, 

Try this. It's what I use. (a Medhurst derivitive). 

K =(0.585-0.25442*(H/D)+(0.15563*(H/D)^2)-(0.02777*(H/D)^3)+(0.00172*(H/D)^4)) 

C(pF) = K * D * 2.54 

Bart 
>
>   
> Hi all, 
>
> Does anybody have the formula or a link for the capacitance of an isolated 
> cylinder that is not due to Medhurst? 
> Thanks in advance. 
> Regards Bob

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