Consider a parallel$-$plate capacitor having an

area of $32\_25$ mm$2$

$(5$ i$\mathrm{.}2$

$),$ a plate separation of

mm $(0\mathrm{.}04$ n$.),$ and a material having a dielectric

constant of $3\mathrm{.}5$ positioned between the plates.

$($a$)$ What is the capacitance of this capacitor?

$($b$)$ Compute the electric field that must be

applied for $310-8$ C to be stored on each plate.