# Find the potential energy of three metal disks

###### Question:

Three charged metal disks are arranged as shown (cutaway view). The disks are held apart by insulating supports not shown in the diagram. Each disk has an area of 2.5 m2 (this is the area of one flat surface of the disk). Use the value 8.85e-12 C2/(N·m2) for e0.The charge Q1 = 3e-8 coulombs, and the charge Q2 = 2e-7 coulombs.
The figure of the disks can be viewed at this website: http://www.webassign.net/mi3/17-070-3plates_D_res.jpg.
What is the potential difference between VC-VB and VD-VF?

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