An electric field of varying magnitude is directed in the positive x-direction throughout a region of space. The field magnitude varies only along the x-direction. V 100 80 60 Electric Potential [Volts] 20 0 0 1 2 3 4 5 6 7 8 9 10 X Position [meters] Part c (1 points) Determine the magnitude of the electric field at the position x = 4 m. (Report your result as a positive number) Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here V /m