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General
Easy
Question
A parallel-plate capacitor is connected to a battery. V0 is the potential difference between the plates, Q0 the charge on the positive plate, E0 the magnitude of the electric field. The original vacuum between the plates is filled with a dielectric and then the battery is disconnected. If the corresponding electrical parameters for the final state of the capacitor are denoted by a subscript f, which of the following is true?
The correct answer is:
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