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Re: Re Secondary Resonance LC and Harmonics

Original poster: "Mike" <induction@xxxxxxxxxxx>


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, June 29, 2005 5:43 PM
Subject: Re Secondary Resonance LC and Harmonics


Original poster: Jared E Dwarshuis <jdwarshui@xxxxxxxxx>
Hi Phil
True if R and N are both zero then we have no wire and hence no
inductance. I think what you meant to ask is what happens as R
approaches zero for a constant length of wire.
As R approaches zero the solenoid length (l) approaches the wire
length. The substitution we used where (l)= wirelength does not lead
to a contradiction, it should be a legitimate step.
To help wrap your mind around this geometry consider what happens when
you take wire from a fat inductor and wind it around progessivly
skinnier forms. Sure enough as the radius gets smaller the length (l)
aproaches that of the straight wire.
Of course the really interesting implication is that at R=0, N is
infinite.

L = u Nsqrd pi Rsqrd / (l) 
                      ^
                      pi R not Squared, pi R round. Cake R Squared.

L = u (Wire length)sqrd / 4pi (l)
Jared and Larry