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Re: resistance in an LRC circuit used to calculate time constant
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To: tesla@pupman.com
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Subject: Re: resistance in an LRC circuit used to calculate time constant
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From: "Antonio Carlos M. de Queiroz" <acmq@compuland.com.br> (by way of Terry Fritz <twftesla@uswest.net>)
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Date: Wed, 15 Mar 2000 20:25:14 -0700
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Approved: twftesla@uswest.net
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Delivered-To: fixup-tesla@pupman.com@fixme
Tesla List wrote:
> Original Poster: "Malcolm Watts" <malcolm.watts@wnp.ac.nz>
> However, it is strictly true. The gap can be treated as a voltage
> source and therefore be ignored (unless one gets very picky). The
> reason is that gap conduction voltage is rather more constant over a
> range of currents (consider a sinusoidal signal) than the voltage
> across a resistance would be.
Something strange... The gap obviously dissipates energy, and
the voltage across it changes polarity at each semicycle. It is
a nonlinear resistor, but it is a resistor. It can be replaced
by an equivalent linear resistor that dissipates the same amount
of energy. An interesting theoretical consideration is if a
nonlinear resistor that keeps a constant voltage across it,
only changing the polarity of the voltage in response to the
current, changes the oscillation frequency of an LC circuit.
Antonio Carlos M. de Queiroz