energy stored capacitor

Question

Energy stored in capacitor is:

RankGuru · Accepted Answer

The work done to charge a capacitor is stored as electrostatic potential energy in the electric field between the plates.
- $U = \frac{1}{2} CV^2$
- Substituting $C = Q/V$ gives $U = \frac{1}{2} QV$
- Substituting $V = Q/C$ gives $U = \frac{Q^2}{2C}$

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Energy stored in capacitor with capacitance C and potential V?