A+1.0 μc point charge is moved from point a to b in the uniform electric field as shown. which one of the following statements is necessarily true concerning the potential energy of the point charge? a) the potential energy increases by 6.0 × 10–6j. b) the potential energy decreases by 6.0 × 10–6 j. c) the potential energy decreases by 9.0 × 10–6 j. d) the potential energy increases by 10.8 × 10–6 j. e) the potential energy decreases by 10.8 × 10–6 j.