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Re: eddy current with secondary coil

To: tesla-at-pupman-dot-com
Subject: Re: eddy current with secondary coil
From: "Tesla list" <tesla-at-pupman-dot-com>
Date: Tue, 07 Oct 2003 18:48:11 -0600
Resent-Date: Tue, 7 Oct 2003 18:52:54 -0600
Resent-From: tesla-at-pupman-dot-com
Resent-Message-ID: <69_mKC.A.1xD.j_1g_-at-poodle>
Resent-Sender: tesla-request-at-pupman-dot-com

Original poster: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br> 

Tesla list wrote:
 >
 > Original poster: Bart Anderson <classi6-at-classictesla-dot-com>

 > On my small 19mH secondary,
 > the inductance at resonance drops to 14.3mH, however, when I add the
 > topload, the inductance at resonance increases up to 18.3mH.

How did you measure the inductance at resonance? Or was this
calculated from a model?
The values seem reasonable, due to the effect of the nonuniform
current along the coil due to its distributed capacitance. The
effect is stronger without topload, as expected.

Antonio Carlos M. de Queiroz

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