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Re: Capacitor charge, were is it?
Tesla List wrote:
>
> > > Subject: Capacitor charge, were is it?
> > Subject: Re: Capacitor charge, were is it?
> > > Subject: Capacitor charge, were is it?
>
> >From hullr-at-whitlock-dot-comMon Oct 28 21:59:20 1996
> Date: Mon, 28 Oct 1996 14:03:27 -0800
> From: Richard Hull <hullr-at-whitlock-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: Capacitor charge, were is it?
>
<Big Snippola>
>
> Good post Bert,
>
> You've put into similar words what I just wrote in reply! (I was away
> for the weekend.) The charge resides in the dielectric because that is
> where the work was done. In solid dielectrics it is referred to as
> polarization (molecular gig goin' on here). In space, (no molecules) the
> purity of the charge retention by space itself is amazingly deceptive.
> Another point you noted is that the solid dielectric/air junction is a
> surface value or feature! This is significant and bear back to the
> original post I made regarding interfacial points of differing dielectric
> constants. To have a capacitor, at least one metal or conductive surface
> must be present at all times, somewhere. The capacitors we are used to
> involve soild dielectrics and two separate plates. Charge spearation can
> even occur between two different dielectrics. Charges and electrostatic
> goings on are a dielectic related thing. To make them do work we need
> the metal stuff to collect them and transport them.
>
> I noted one post making a little jab at what would certainly be me
> regarding to much theoretical concerns here. Man this is where theory
> shines and fails. It seems its all theory and real hard to grasp
> intuitively. Frankly, I think a lot of thoughts on this area are just
> that! There is only one true physical reality but lots of thoughts and
> intellectual wind gusts. I'm not so sure science has the grip on this
> subject to the degree they would like. We got equations up the wazoo
> which when solved yield solutions to real work problems but the little
> minutia and quatum goes on at the gut level are still just a crap shoot
> in our understanding. No one really knows more than a broad overview.
> (more than sufficient for real world apps)
>
> Richard Hull, TCBOR
Thanks, Richard!
Actually, the earlier jab was self-directed. I sometimes have a tendency
to get too theoretical, I suspect, for some of the other "dinkers" on
the list. Dielectric theory tends to get very hairy, very fast! Seems
like the more we learn, the less we truly know!
In coilin', seems like half the battle lies in explaining the "wierd"
effects encountered during experimentation... the other, and even more
challenging half, lies in pushing the envelope of what's possible
through innovations in theory and design.
Thanks again for your thoughtful, educational, and entertaining posts!
Safe coilin' to ya, Richard!
-- Bert --