A parallel plate capacitor having a dielectric constant 5 and dielectric strength 106 V m-1 is to be designed with voltage rating of 2 kV. The field should never exceed 10% of its dielectric strength. To have the capacitance of 60 pF the minimum area of the plates should be
1
27.1 × 10-4 m2
2
2.7 × 10-2 m2
3
2.71 × 10-4 m2
4
27.1 × 10-2 m2