Physics

Problem

A parallel plate capacitor with square plates of side

10\,\text{cm}

and gap

2\,\text{mm}

is connected to a

200\,\text{V}

supply. A dielectric slab (

K=3

) of thickness

2\,\text{mm}

is inserted halfway into the capacitor. Calculate the magnitude of the force exerted by the electric field on the slab trying to pull it further in.