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A parallel plate capacitor of capacity C...

A parallel plate capacitor of capacity `C_(0)` is charged to a potential `V_(0)`. (i) The energy stored in the capacitor when the battery is disconnected and the plate separation is doubled is `E_(1)`.(ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is `E_(2)`.Then, `E_(1)/E_(2),` value is

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