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RE: Capacitance of toroids



Original poster: "Philip Chalk" <philip@xxxxxxxxxxxxxxxxx>



Hi Adriano,



>Original poster: "Adriano Mollica" <adriano.mollica@xxxxxxxxxxx>
>
>Hello to everyone,
>

  SNIP
>
>i found on internet two different way to calculate it, but  both use
only
>two parametes witch are , in one case: internal diameter and external
>diameter, or in the other case: external diameter  and size of the
pipe.
>  And of course, i obtained 2 quite different measurements. What i
need, is a
>formula that use all three parameters toghether: inside diameter(d) ,
>external diameter(D), and size of the tube(x).
>
>do you know the answer?
>
>thanks, Adriano
>


As all 3 measurements are directly related, knowing any two directly
determines the third.

Cheers,

Phil Chalk.