A stronger electric field due to closer plate spacing or a good dielectric insulator would do it. A larger plate surface would too.
sk
-----Original Message-----
From: Michael Burns-Kaurin [mailto:mburns-k@SPELMAN.EDU]
Sent: Thursday, February 13, 2003 08:55
To: PHYS-L@lists.nau.edu
Subject: Re: Capacitor energy experiment
I will try asking Bob's question in a different way. Suppose I have two 1
F capacitors, each with potential difference 1 V. What physical difference
between the capacitors makes one of them "store" 1 J while the other
"stores" 0.5 J?