Current Attempt in Progress Your answer is partially correct. A graph of the x component of the electric field as a function of x in a region of space is shown in the figure. The scale of the vertical axis is set by Ex - 20.0 N/C. The y and z components of the electric field are zero in this region. If the electric potential at the origin is 19 V. (a) what is the electric potential at x - 2.0 m, (b) what is the greatest positive value of the electric potential for points on the x axis for which 0