(a) Derive the expression for the energy stored in a parallel plate capacitor. Hence obtain the expression for the energy density of the electric field.
(b) A fully charged parallel plate capacitor is connected across an uncharged identical capacitor. Show that the energy stored in the combination is less than that stored initially in a single capacitor.

Answer rating: 100% (QA)

The detailed answer for the above question is provided below Answer a i Energy of a parallel plate c... View the full answer