Q. A capacitor of capacity $C$ has charge $Q$ and stored energy is $W.$ If the charge is increased to $2Q,$ the stored energy will be
A) $2W$
B) $W/2$
C) $4W$
D) $W/4$
Explanation
(c) $W = \frac{Q^{2}}{2C} \Rightarrow W^{'} = 4W$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.