1. The problem statement, all variables and given/known data Three conducting plates, each of area A = 3.5 cm2, are connected in such a way that the center plate can be moved between the two fixed outer plates. If the distances between the outer plates and the center plate are d1 = 0.35 mm and d2 = 0.65 mm, find the effective capacitance C of the system. 2. Relevant equations C = E0*A/d 3. The attempt at a solution I have tried adding the Capacitance of each plate (using equation above) with d1 and then d2 and finally d3 (total distance). I added that together but can't seem to get the right answer. I think it confuses me that there are 3 parallel plates because all the examples we talked about in class have been with 2 parallel plates.