Charged and isolated capacitor whose plates are pulled apart: what changes

1. A.
   the capacitance of the capacitor increases
2. B.
   the charge on the capacitor decreases
3. C.
   the voltage across the capacitor increases
4. D.
   the energy stored in the capacitor decreases

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1. A.
   Charge remains constant after it is isolated.
2. B.
   Potential difference across the plates decreases.
3. C.
   Potential difference across the plates increases.
4. D.
   Capacitance of capacitor decreases.

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