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From: fransvo@maestro.htsa.aha.nl (Frans van Otten)
Newsgroups: sci.electronics,sci.physics
Subject: Re: Re^2: HV Cap Fun!
Message-ID: <956@maestro.htsa.aha.nl>
Date: 2 Jun 89 09:08:49 GMT
References: <4924@m2c.M2C.ORG> <3806@mit-amt> <20772@quacky.mips.COM> <166@mother.dde.uucp>
Reply-To: fransvo@htsa.UUCP (Frans van Otten)
Followup-To: sci.electronics
Organization: AHA-TMF (Technical Institute), Amsterdam The Netherlands
Lines: 32

Martin Berg writes:

>Vaso Bovan writes:
>
>>A Paradox of Capacitor Energy Storage
>
>By the way: I'm not so sure that the resulting voltage would be 5 V
>in your example.

Of course it would be 5 volt.  The following formula applies to capacitors:

q = C*u   (the charge is the capacitance times the voltage)

Math for the problem (both capacitors have capacitance C):

Before:

q1 = C * 10 V = 10C coulomb
q2 = C *  0 V =  0C coulomb

Total charge 10 coulomb.

after:

q1 = C * 5 V = 5C coulomb
q2 = C * 5 V = 5C coulomb

Total charge 10 coulomb.
-- 
Frans van Otten                     |   fransvo@maestro.htsa.aha.nl    or
Algemene Hogeschool Amsterdam       |   fransvo@htsa.uucp              or
Technische en Maritieme Faculteit   |   [[...!]backbone!]htsa!fransvo