Keeping the voltage of the charging source constant, what would be the percentage change in the energy stored in a parallel plate capacitor, if the separation between in plates were to be decreased by `10%` ?

Explanation

To solve the problem of finding the percentage change in the energy stored in a parallel plate capacitor when the separation between the plates is decreased by 10%, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Energy Stored in a Capacitor**:
The energy (U) stored in a capacitor can be expressed using the formula:
\[
U = \frac{1}{2} C V^2
...