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An ideal parallel-plate capacitor consists of a set of two parallel plates of area A separated by a very small distance d . When this

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An ideal parallel-plate capacitor consists of a set of two parallel plates of area A separated by a very small distance d . When this capacitor is connected to a battery that maintains a constant potential difference between the plates, the energy stored in the capacitor is U o. If the separation between the plates is doubled, how much energy is stored in the capacitor? 2Uo 4U o/4 U Q/2 4Uo Uo

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