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2. A battery fully charges a parallel-plate air-gap capacitor with moveable plat

ID: 2235732 • Letter: 2

Question

2. A battery fully charges a parallel-plate air-gap capacitor with moveable plates. The battery is then removed and the plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remains constant.) What happens to the potential difference between the plates as they are being separated? a) It increases. b) It decreases. c) It remains constant. d) There is no way to tell from the information given. EXPLAIN PLEASE! Thanks in advance

Explanation / Answer

increasing d ===> decreasing C ===> V increses

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