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



David Rutherford wrote:



Thus, for a capacitor charged through a resistance, the energy
dissipated by the resistor during charging should be included, along
with the energy of the charges stored on the capacitor, in the energy
of (work done on) the charges. Since the energy dissipated by the
resistor during charging is 1/2 CV^2 and the energy stored on the
capacitor is 1/2 CV^2, I claim that the total energy of the charges,
in the absence of dissipation would have been CV^2. This would seem to
indicate that the energy of a distribution of charges is twice the
conventional value.

OK - so you've redifined the value of the stored energy. Now describe a way
to get CV^2 of useful work from the capacitor. Make it specific enough so
the method could be performed by those so inclined.

Bob at PC