Question

A parallel plate capacitor is filled by copperplate of thickness b. The new capacity will be..
1)\[\frac{\varepsilon _0A}{2d-b}\]
2)\[\frac{\varepsilon _0A}{d-b}\]
3)\[\frac{\varepsilon _0A}{d-\frac{b}{2}}\]
4)\[\frac{\varepsilon _0A}{d}\]

Answer 1

2