(i) (5 pts) 3 charges of equal magnitude are fixed at the corners of a square. The sign of each charge is indicated in the figure below. In which quadrant will the net electrostatic force be directed for a negative charge at the point? Draw the direction of the net force to support your answer. Explain: II III IV (ii) (5 pts) A positive charge and a negative charge are released from rest in vacuum and accel- erate toward each other. As they do: a) Their positive electrical potential energy becomes more positive. b) Their positive electrical potential energy becomes less positive. c) Their negative electrical potential energy becomes more negative. d) Their negative electrical potential energy becomes less negative. e) Their positive electrical potential energy becomes a negative electrical potential energy. Explain: