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Capacitance of Archimedean coil



Original poster: "Marko by way of Terry Fritz <teslalist-at-qwest-dot-net>" <moyson-at-tig-dot-com.au>

Hello all!

The Medhurst formula calculates a cylindrical coil capacitance. Does this
formula has come about purely from experimental means, or can it be derived?

I am looking to calculate the capacitance of a flat spiral coil.
I have not been able to find a formula for capacitance of other coil forms
like the flat spiral coil.
Does anyone know of this?
Or is there a method for deriving a coil capacitance??...my textbooks are
not helping...


Thanks,
marko.