Physics

Problem

10\,\mu\text{F}

capacitor is charged to

200\,\text{V}

and then disconnected from the battery. A dielectric slab of dielectric constant

\kappa=5

is completely inserted between the plates. What is the energy stored in the capacitor after the insertion? a)

0.20\,\text{J}

0.08\,\text{J}

0.04\,\text{J}

1.0\,\text{J}