ANSWER
[tex]2,434.46N\/C[/tex]EXPLANATION
To find the strength of the electric field, apply the formula below:
[tex]E=\frac{F}{q}[/tex]where F = electric force, q = charge of the electron
Hence, the strength of the electric field is:
[tex]\begin{gathered} E=\frac{3.9\cdot10^{-16}}{1.602\cdot10^{-19}} \\ E=2,434.46N\/C \end{gathered}[/tex]That is the answer.