1. The problem statement, all variables and given/known data What is the diﬀerence in electric potential between a point midway between the charges and a point 0.05 meters away from the positive charge but along the line between the charges? 2. Relevant equations UE = K * (Q1*Q2)/r 3. The attempt at a solution K = 9.0x109Nm2/C2 UE = (9.0x109Nm2/C2)(-2.0x10-6C)(Qcenter)/.1 + (9.0x109Nm2/C2)(2.0x10-6C)(Qmidpoint)/.1 Am I doing this right? If not, how could I go about solving this?