일반물리학 2 — Capacitance: Problem 44

44 Two parallel plates of area $100 \text{ cm}^2$ are given charges of equal magnitudes $8.4 \times 10^{-7} \text{ C}$ but opposite signs. The electric field within the dielectric material filling the space between the plates is $1.4 \times 10^6 \text{ V/m}$. (a) Calculate the dielectric constant of the material. (b) Determine the magnitude of the charge induced on each dielectric surface.