Electromagnetic Waves: JEE Main 2022 Physics question

A velocity selector consists of electric field $\vec{E}=E \,\hat{k}$ and magnetic field $\vec{B}=B \,\hat{j}$ with $B=12 \,m T$. The value of $E$ required for an electron of energy $728 \,\mathrm{e} V$ moving along the positive $x$-axis to pass undeflected is : (Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )