How is the electric field due to a charged parallel plate capacitor affected when a dielectric slab is inserted between

Question

1. How is the electric field due to a charged parallel plate capacitor affected when a dielectric slab is inserted between the plates fully occupying the intervening region? ii. A slab of material of dielectric constant K has the same area as the plates of a parallel plate capacitor but d/2 has thickness where d is the separation between the plates. Find the expression for the capacitance when the slab is inserted between the plates.

Answer 1

Your answer 

Dielectric When a dielectric slab is introduced between the plates of charged capacitor or in the region of electric field, an electric field E_P induces inside the dielectric due to induced charge on dielectric in a direction opposite to the direction of applied external electric field.