APFIVE Dielectric Effect on Capacitor Electric Field
A parallel plate capacitor with initial capacitance C₀ is charged to Q₀ and disconnected from the battery. When a dielectric with constant κ is inserted, what is the ratio of the final electric field to the initial electric field in the region between the plates?
A
κ
B
1
C
1/κ
D
1/κ²
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