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



At 11:17 AM -0800 2/12/03, David Rutherford wrote:

I would like to suggest that if energy dissipation has occurred in the
charging of a capacitor, the amount of energy stored on the capacitor,
alone, cannot be used as evidence of the energy of a distribution of
charges. In the theoretical determination of the energy of (work done
on) a distribution, the assumption is that there is no dissipation of
energy as the distribution is assembled. Therefore, the optimum measure
of the energy of a distribution of charges should be in the absence of
dissipation. But in the case that dissipation occurs, the energy lost in
dissipation should be included in the energy that the distribution would
have had if no dissipation had occurred.


hmmm, where does theory end and engineering begin!!!

If someone on this list drives an electric car - would there be more
'energy' on board if the charging process was made to be more
dissipative?? (Same final state of the battery).

Thermo will indeed be turned on it's head.
Or maybe batteries aren't close enough to capacitors to be relevant?