An electron in a region where there is an electric field experiences a force of magnitude 3.5 10-16 n. what is the magnitude of the electric field at the location of the electron?

The force that an object feels in an electric field is the magnitude of the electric field E times the charge on the object Q. We know that the magnitude of the charge of an electron is 1.6 x 10^{-19} C F = E x Q E = F / Q E = (3.5 x 10^{-16} N) / (1.6 x 10^{-19} C) E = 2.19 x 10^3 N/C The magnitude of the electric field at the location of the electron is 2.19 x 10^3 N/C