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calculating inductance




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From:  Kevin Wahila [SMTP:wawa@spectra.net]
Sent:  Friday, January 23, 1998 10:55 AM
To:  tesla@pupman.com
Subject:  calculating inductance

i used to have a bookmark for a web page that would allow you to enter
parameters to calculate the inductance of various shapes.  does anyone have
this link?  i am specifically looking for a formula for a toroid.  i also
remember something about the permitivity (i think that was the word) of the
substance.  what is the permitivity of ferrite?

thanks.....
kevin