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A parallel plate capacitor of plate area...

A parallel plate capacitor of plate area `0.2m^(2)` and spacing `10^(-2)` m is charged to `10^(3)` volts and is then disconnected from the battery. How much work is required if the plates are pulled apart to double the plate spacing ? Calculate the final voltage onthe capacitor `epsi_(0)^(-1)=36pixx10^(9)VmA^(-1)s^(-1)`

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