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A 100V battery was used to fully charge a 75pF capacitor. After disconnecting the battery, the...

A 100V battery was used to fully charge a 75pF capacitor. After disconnecting the battery, the capacitor was then connected in parallel with a second uncharged capacitor. The potential difference across the first capacitor drops to 75V, what is the capacitance ?of the second capacitor?

(A) ?=15pF (B) ?=25pF (C) ?=28pF (A) ?=32pF (E) None of the above

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