(Solved): In the figure, an electron accelerated from rest through potential difference V1=1.50kV enters t ...

In the figure, an electron accelerated from rest through potential difference $V_1=1.50\mathrm{kV}$ enters the gap between two parallel plates having separation $d=15.6\mathrm{mm}$ and potential difference $V_2=124\mathrm{V}$. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number ( $\hat{i}+?\hat{j}+$ $\hat{k})$ Units