Voltage (MV)

Thickness (mm)

Potential Energy Variation EP (J)

2

8

23.1 × 10−4

1

8

13.9 × 10−4

0.5

8

3.6 × 10−4

2

4

13.1 × 10−4

1

4

8.3 × 10−4

0.5

4

1.8 × 10−4