A charged capacitor stores energy U. Without connecting this capacitor to anything, dielectric having dielectric constant K is now inserted between the plates of the capacitor, completely filling the space between them. How much energy does the capacitor now store?
A) 2KU
B) KU
C) U

Question

A charged capacitor stores energy U. Without connecting this capacitor to anything, dielectric having dielectric constant K is now inserted between the plates of the capacitor, completely filling the space between them. How much energy does the capacitor now store?
A) 2KU 
B) KU 
C) U

Quizplus · Accepted Answer

The Answer is D

A Charged Capacitor Stores Energy U