## Question

###### Two identical parallel-plate capacitors, each with capacilance C , are separately charged t0 potential difference AV and then disconnected from the battery. They are then connected t0 each other in parallel with plates of Iike sign connected_ (a) Find an expression for the total energy of the system of two capacitors:(b) Next, the plate separation in one of the capacitors is doubled. Find an expression for the potential difference across each capacitor after the plate separation is doubled:(c) F

Two identical parallel-plate capacitors, each with capacilance C , are separately charged t0 potential difference AV and then disconnected from the battery. They are then connected t0 each other in parallel with plates of Iike sign connected_ (a) Find an expression for the total energy of the system of two capacitors: (b) Next, the plate separation in one of the capacitors is doubled. Find an expression for the potential difference across each capacitor after the plate separation is doubled: (c) Find an expression for the total energy of the system (of part| b) after the plate separation is doubled

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