The electric field in the dielectric-filled region between the plates of a capacitor is E. What is the charge density on the plates?

Question

Quizplus · Accepted Answer

The charge density ($\sigma$) on the plates of a capacitor filled with a dielectric material is given by $\sigma = \epsilon_0 E$, where $\epsilon_0$ is the permittivity of free space and $E$ is the electric field. This matches choice D, which in plain text reads $\epsilon_0 E$, but due to a formatting error, it's listed as choice E here.

The Electric Field in the Dielectric-Filled Region Between the Plates