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Intro To Dielectrics
Intro To Dielectrics
26. Capacitors & Dielectrics / Intro To Dielectrics / Problem 3

A camera flash unit uses a 150 µF parallel-plate capacitor without any dielectric between the plates. The two parallel plates are 3.00 mm apart, and the electric field between them is 6.00 × 104 V/m. i) Determine the maximum charge Qmax on the capacitor. ii) Suppose that the volume between the capacitor plates is totally filled with teflon dielectric with K = 2.1. If the electric field between the plates remains constant at 6.00 × 104 V/m, calculate the maximum charge Qmax,new on the capacitor.

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