In the gure, a parallel$-$plate capacitor has square plates of edge length L $=1\mathrm{.}4$ m$.$ A current of $1\mathrm{.}5$ A charges the capacitor, producing a uniform electric eld between the plates, with perpendicular to the plates. $($a$)$ What is the displacement current i through the region between the plates?$($b$)$ What is dE$/$dt in this region?$($c$)$ What is the displacement current encircled by the square dashed path of edge length d $=0\mathrm{.}50$ m$?($d$)$ What is around this square dashed path?