Two thin parallel conducting plates are placed $2\mathrm{.}0$cm apart. Each plate is $2\mathrm{.}0$cm on a side; one plate carries a net charge of $8\mathrm{.}0$C$,$ and the other plate carries a net charge of $-8\mathrm{.}0$C$.$ What is the charge density on the inside surface of each plate? What is the electric field between the plates? Charge density