For an isolated parallel plate capacitor of capacitance C and potential difference V, what will be change in (i) charge on the plates (ii) potential difference across the plates (iii) electric field between the plates (iv) energy stored in the capacitor, when the distance between the plates is increased ?

Explanation

To solve the problem regarding the changes in an isolated parallel plate capacitor when the distance between the plates is increased, we will analyze each aspect step by step.

### Given:
- Capacitance of the capacitor, \( C \)
- Potential difference across the plates, \( V \)

### Formulas:
1. Charge on the plates:
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