Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Capacitor energy experiment



Michael Burns-Kaurin wrote:

I will try asking Bob's question in a different way. Suppose I have two 1
F capacitors, each with potential difference 1 V. What physical difference
between the capacitors makes one of them "store" 1 J while the other
"stores" 0.5 J?

You are missing my point, completely. Suppose, for the sake of argument,
that it is _impossible_ to charge a capacitor without 1/2 CV^2 of energy
being dissipated during charging. Also suppose that the energy stored on
the capacitor is fixed at 1/2 CV^2. I'm not saying that I believe that
this is the only possibility; I'm only trying to show that, if this was
the only possibility, the energy dissipated during charging, should be
included in the total energy of the charges. Otherwise, if you don't
include it, the experiment doesn't provide valid evidence for the work
done on distribution of charges (or the energy of the field) since,
theoretically, the work done to assemble a distribution of charges
doesn't consider dissipation of energy during the assembling of the
charges. The perfect experiment would be to charge the capacitor in the
absence of dissipation. But since that is probably not going to happen,
I'm trying to convince you that, in the conventional experiment (the one
where 1/2 CV^2 is dissipated), 1/2 of the energy of the charges - the
energy dissipated during charging - that should be counted, is not being
counted. That energy may no longer be associated with the charges stored
on the capacitor after the capacitor is charged, but it was at one time
associated with those charges and is still somewhere in the field. Work
can be derived from it and it should be counted.

--
Dave Rutherford
"New Transformation Equations and the Electric Field Four-vector"
http://www.softcom.net/users/der555/newtransform.pdf

Applications:
"4/3 Problem Resolution"
http://www.softcom.net/users/der555/elecmass.pdf
"Action-reaction Paradox Resolution"
http://www.softcom.net/users/der555/actreact.pdf
"Energy Density Correction"
http://www.softcom.net/users/der555/enerdens.pdf
"Proposed Quantum Mechanical Connection"
http://www.softcom.net/users/der555/quantum.pdf