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Re: Variable Capacitance and Inductance
Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
Tesla list wrote:
> Original poster: "David Thomson by way of Terry Fritz
> Hi Ed,
> >> When considering a static capacitor, one with no frequency applied to the
> >> charge, the closer the charged body is to the earth, the higher the
> >> capacity. This is obvious. The further the charged body is from the
> >> the lower the capacitance will be. However, Tesla was measuring a
> >> charged body. The amount of charge a body will hold depends on the
> >> dielectric between the charged bodies. The further the ball was raised,
> >> more dielectric between the sphere and earth and hence the greater the
> >> capacity.
What does "more dielectric" mean? In what way more?
> > Not true. The dielectric constant of the material surrounding the
> conductor affects the capacitance for a given geometry. The volume of
> dielectric doesn't enter in per se.
> Who said anything about the volume? If you look at my other statements
> about dielectrics in this thread, you will see I'm talking about adding to
> the dielectric _strength_. I never said volume.
Read what I quoted above and you'll see the source of confusion. You
don't say anything about dielectric strength, just the quantity (more)
of dielectric. If that isn't volume, what is it?
> I've been studying the dimensions of capacitance (and other units) in great
> detail this year. Please don't put words into my mouth. I have enough
> challenge keeping up with my own errors than to have to address yours to.