Dielectric Effect on Capacitor Electric Field
A parallel-plate capacitor with an initial capacitance C₀ is charged to Q₀ and then disconnected from the battery. A dielectric with a constant κ is subsequently inserted between the plates. What is the ratio of the final electric field to the initial electric field within the capacitor?
A
1
B
1/κ
C
κ
D
1/κ²
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