140 x 10 2. Figure 1 shows an electron free to move in a uniform electric field. State and explain the direction of the electrostatic force on the electron. Figure 1 ii) Calculate the magnitude of the electrostatic force acting on the electron. is accelerated by the field through a distance of 63 mm parallel to the field lines its kinetic energy increases by 4.0 x 10 J. (iii) Calculate the electric field strength