Infinite Planes Eletric Field Question

CH1991 · Sep 15, 2011

Hi! I have already write everything on the pictures(In attachment), I have already circled the correct answer, however, I am not sure explain it correctly. So, can you check my explanation or question?
Thanks!

Annotated screenshot of a multi-question physics quiz on infinite charged planes, with handwritten blue notes and circled answers, showing a cross-section of three slabs along the x axis with surface charge densities and a question about the electric field at zero.

Spinnor · Sep 15, 2011

This may not help, but see figure 9 of the following,

http://phy214uhart.wikispaces.com/Gauss'+Law

If you take the configuration of figure 9 and copy it, paste it, flip it and connect the two copies together you get the same set up as your problem, the fields will be the same as your problem, fields zero outside and only nonzero between conducting planes.

Infinite Planes Eletric Field Question

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