A potential difference of V exists between two plates of a parallel-plate capacitor with capacitance C A dielectric with - Physics - Electrostatic Potential And Capacitance

Question

A potential difference of V exists between two plates of a
parallel-plate capacitor with capacitance C A dielectric with a
dielectric constant of K is then placed between the plates of the
capacitor What is the energy stored in the capacitor?

Ravi Gupta · Accepted Answer

C is the inifial capacitanceWhen dielectric medium is introduced then
 new capacitanceC' = kCenergy stored is given by:E = 12C'V2 = kCV22

A potential difference of V exists between two plates of a parallel-plate capacitor with capacitance C. A dielectric with a dielectric constant of K is then placed between the plates of the capacitor. What is the energy stored in the capacitor?