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AP® Physics C: E & M

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Moderate

Electric Field with Charge Density

APPHEM-VPWYPN

Which of the following is a correct expression for the electric field, $E$, between two charged parallel plates, in terms of the charge density $\sigma$ and fundamental constants? Ignore any edge effects.

A

$ \sigma \epsilon_{o}$

B

$\cfrac{ \sigma}{ \epsilon_{o}}$

C

$\cfrac {\epsilon_{o}}{ \sigma}$

D

$2 \pi \sigma \epsilon_{o}$

E

$\cfrac{ \sigma \epsilon_{o}}{2 \pi}$