All of the charges in the diagram have the same sign. What is the direction of the 1. electric force on charge Q (in the center of the diagram) if the four outer charges are equidistant from the center? A) down B) Up 0) The net force is zero D) left E) right 2. Two charges Q1 and -0.2 are separated by a distance r. The charges attract each other with a force F. What is the new force between the charges if the distance is cut to one-fourth and the magnitude of each charge is doubled? 1 1 A.16F B.64F C.48F D'EF E's4F 3. A non-uniform electric field is represented by equipotential lines. A positive charge with a A magnitude of 1 pC moves in the following path: E A>B+C>D>E How much work is done by C the electric field? A.0pJ B.20pJ C.40pJ D.60pJ E. 80 [U +20V '20V +10V -10V