Question

an electron enterd uniform field that is directed downward and has a magnitude of 5 N/C. (a.)find the magnitude and direction of the force experienced by the electron (b.) find also its acceleration

Answer 1

(a) find the magnitude and direction of the force experienced by the electron

$$F=eE=1.6*10^{-19}*5=8*10^{-19}\:\rm N$$

The force is directed upward.

(b) find also its acceleration

$$a=\frac{F}{m}=\frac{8*10^{-19}}{9.1*10^{-31}}=8.8*10^{11}\:\rm m/s^2$$