1. What configuration would have the greatest electric potential energy? hint don't forget about signs) i: A charge of +2q at a distance of d from a charge of -2a i: A charge of +q at a distance of d/2 from a charge of +q ili: A charge of +2q at a distance of d from a charge of +2q iv: A charge of +2q at a distance of 2d from a charge of -a O ii and iv O i and iv O i only O Q2. positive and negative charge of equal magnitude are a distance d apart. By what factor should the distance between them be changed in order to half the attractive force between them? 1) 1/2 2) 2 3) 2 4) 1/2