Re: Formula for Capacitance of a Toroid

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi,

E-Tesla6 can calculate it very accurately.  But it will assume there is at 
least a vertical wire going to the toroid which does change the fields a 
little from a theoretically perfect situation.

You can just specify the toroid as usual, but leave the rest of the parts 
of the coil like 1 inch high so they don't matter.

http://hot-streamer-dot-com/TeslaCoils/Programs/E-Tesla6.zip

I am not sure what you are trying to do with this number so there may be 
details, but I can help with that.

Cheers,

         Terry


At 12:37 PM 6/4/2003 -0400, you wrote:
>Anyone have the formula for capacitance of a toroid???
>
>It seems every tesla cad program I have outputs a different value for the
>inputs I specify.  I'm not sure
>which one I trust.  So I'd rather do it manually.
>
>Thanks
>
>The Captain