Re: [Phys-L] charged paralle plates

[Carl Mungan <mungan@usna.edu>]

John M wrote:

> Because the field
> inside the left plate is zero, Gauss' law requires the total charge on the
> three remaining sides ALSO to be x.

Of course your numerical answers are right. But I don't follow how 
you used Gauss' law in this step. Be explicit: I assume you're 
thinking of a rectangular gaussian surface. Exactly what does it 
enclose? I can't see how to draw a surface to prove your assertion 
above. I can prove this assertion by superposition of the fields, and 
not by drawing a gaussian surface. -Carl
--
Carl E Mungan, Assoc Prof of Physics  410-293-6680 (O) -3729 (F)
Naval Academy Stop 9c, 572C Holloway Rd, Annapolis MD 21402-1363
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