Select the correct ansSelect the correct answer. With a thunderstorm brewing, an electric field of magnitude 2.0 102 newtons/coulomb exists at a certain point in the earth's atmosphere. If an electron at that point has a charge of -1.6 10-19 coulombs, what is the magnitude of the force on the electron as a result of the electric field? A. 2.0 10-6 newtons B. 3.2 10-17 newtons C. 5.8 105 newtons D. 6.4 10-3 newtons E. 1.7 104 newtonswer. Which of these is described as force per unit charge on a positive test charge? A. test charge B. source charge C. electric force D. electric field E. electric current