i. In the figure shown, all four charges are situated at the corners of a square with sides 3. we} ~~~~~~~~ i --------- are s: is 4265 ------------------ {1342 (a) What is the total electricai ootential energy of this array of fixed charges? (b) What is the electric field at the center of the square? (c) What is the electric potential at the center of the square? (d) Sketch (on the diagram) the portion of the equipotential surface that lies in the plane of the ' figure and passes through the center of the square. (e) How much work would the electric field perform on a charge q as it moved from the mid;- point of the right side of the square to the midpoint of the top of the square