A parallel plate capacitor contanins a mica sheet (thickness 0.5+×10−3 m) . And a sheet of fiber (thickness 0.5×10−3m) . The dielectric constant of mica is 8 and that of thye fiber is 2.5 Assuming that the fiber breaks down when subjected to an electric field of 6.4 × 106V m^−1. , find the maximum safe voltage that can be applied to the capacitor.
![](https://sahay.guru/wp-content/uploads/2020/09/193-1-1024x507.jpg)
![](https://sahay.guru/wp-content/uploads/2020/09/1932-933x1024.jpg)