An electron $(m=9\mathrm{.}1{10}^{-31}kg)$ is accelerated in a uniform field of value $2\mathrm{.}0{10}^4\frac{N}{C}$ between two parallel oppositely$-$charged plates. The separation of the plates is $1\mathrm{.}5$ cm $.$ The electron is accelerated from rest near the negative plate. Show that the gravitational force can be ignored by determining the ratio of $\frac{F_E}{F_g}.$ For your answer, approximate that the ratio is equal to ${10}^x$ and determine what $x$ is$.$