Hi I think I figured it but I'm not sure. Here's the problem: How Much Work In Fig. 25-34, how much work is required to bring the charge of +5q in from infinity along the dashed line and place it as shown near the two fixed charges +4q and –2q? Take distance d = 1.40 cm and charge q = 1.6 × 10–19 C. I summed up the Vpotential at the point which I got 0 Volts Then I used W = qt(Vp-Vinfinity) = 0J. It just seems too simple to be correct.