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K^2
#5
Jul23-10, 01:46 AM
Sci Advisor
P: 2,470
Seconded. Gauss Law always holds, but it is insufficient to determine the E-field unless you also know the curl of the field. In statics the later is always zero, so Gauss Law is all you need to solve a statics problem. That's probably what Feynman is talking about.