Question: Two circular disks spaced 0.50 mm apart form a parallel plate capacitor. Transferring 3.0 10 9 electrons from one disk to the other causes

Two circular disks spaced 0.50 mm apart form a parallel plate capacitor. Transferring 3.0 × 10⁹ electrons from one disk to the other causes the electric field strength to be 2.0 × 10⁵ N/C. What are the diameters of the disks?

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