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Re: [Phys-l] Capacitance problem



At 10:32 AM 3/29/2008, Bob S., you wrote:
I have taken a different approach, concentrating on the CHARGE on each
capacitor plate. For simplicity I assume ideal capacitors (no fringing), of
equal value. Once the EMF is disconnected, the charge +Q is trapped on the
upper plate of C1. For an ideal capacitor, a charge -Q will be attracted
onto the lower plate of C1 from wherever it is available. Grounding this
lower plate does not affect this charge value, and the potential across C1
is still 1/2 the original EMF, but it does lower the point V2 to ground
potential.

See some sketrches at:

http://www.winbeam.com/~trebor/CAPS/CAPS.jpg

Bob Sciamanda


I understand that the original question was not addressed to the first cycle
of operation, - but to the result of numerous cycles.

Does it seem to you that the upper capacitor ends
up with the battery potential across its plates?



Brian Whatcott Altus OK Eureka!