Re: Dimensions of my flat spiral coil

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

Original poster: "Steve Greenfield by way of Terry Fritz <twftesla-at-qwest-dot-net>" <alienrelics-at-yahoo-dot-com>


--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Ed Phillips by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
> 
> Tesla list wrote:
> > 
> > Original poster: "Ben McMillen by way of Terry
> Fritz
> <twftesla-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>
> > 
> > I thought inductance in parallel added like
> resistors in
> > parallel? Or am I thinking of inductive reactance?
> Hrm..
> > 
> > Coiling in Pittsburgh
> > Ben McMillen
> 
> 	Correct in both cases in the case of inductors with
> no mutual coupling,
> still correct for closely-coupled inductors if the
> sense (direction of
> winding) of the windings is the same.

Correct with no mutual coupling.

But with close-coupled inductors they start to act
more like a larger inductor with more turns.

IE, inductance is proportional to turns squared. It
does not just add.

=====
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