Calculate Distributed Capacitance for Wireless Energy Transfer in Circular Coils

[nafaraj]

Hello,

I am designing a wireless energy transfer system and would like a formula to calculate the distributed capacitance in a circular coil of N turns. Any kind of assistance is really appreciated.

 

[CWatters]

Google found..

http://deepfriedneon.com/tesla_f_calchelix.html

Not sure if that assumes it's enamel coated copper wire.