Potential difference please help!! 1. The problem statement, all variables and given/known data It takes 3.3 μJ of work to move a 34.26 nC charge from point A to B. It takes -3.3 μJ of work to move the charge from C to B. What is the potential difference VC-VA? 2. Relevant equations Uel = qV 3. The attempt at a solution Don't I just find the difference between A and C? Vc = Uelc * qc = 1.13x10^-13 And Va would be the same so I know I am not understanding this.