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From: mph@behemoth.phx.mcd.mot.com (Mark Huth)
Newsgroups: sci.electronics,sci.physics
Subject: Re: HV Cap Fun!
Keywords: capacitor,energy,paradox
Message-ID: <10992@behemoth.phx.mcd.mot.com>
Date: 2 Jun 89 19:01:25 GMT
References: <4924@m2c.M2C.ORG> <3806@mit-amt> <20772@quacky.mips.COM>
Reply-To: mph@behemoth.UUCP (Mark Huth)
Followup-To: sci.electronics
Organization: Motorola Microcomputer Division, Tempe, Az.
Lines: 21

In article <20772@quacky.mips.COM> vaso@mips.COM (Vaso Bovan) writes:
>A Paradox of Capacitor Energy Storage
>
>Consider an ideal 2uF (for computational ease) capacitor charged by a 10 volt 
>source. Eventually, the energy stored is (1/2)*CV^2=100 joules.
>
>Consider the capacitor to be isolated from the voltage source, and then
>directly shorted across an identical (ideal) capacitor. Eventually, the
>voltage across each capacitor will be 5V. Now, there are two equally
				       ^ No.  There is no paradox.  The
voltage will not be 5 volts.  It will be 50**.5 volts.  A tad over 7.









Mark Huth