Explanation :
Electric field is defined as the electric force that is acting per unit electric charge.
i.e. [tex]E=\dfrac{F}{q}[/tex]
So, the force acting on charge when it is placed in an electric field will be :
[tex]F=q\times E[/tex]
For an electron,
Charge on electron, [tex]q=e=1.6\times 10^{-19}\ C[/tex]
The magnitude of force on electron is
[tex]F= (1.6\times 10^{-19}\times E)\ N[/tex]
So, by putting the value of electric field it is very easy to find electric force.
