Changes

*The [[energy]] stored in a [[capacitor]] is half the [[energy]] required to charge the capacitor. Since the [[Electrical Work|work done]] to [[Electrical Charge|charge]] the [[capacitor]] is given by the product of the [[Electrical Charge|charge]] supplied by the [[Electrical Battery|battery]] and the [[Potential Difference|potential difference]] of the [[Electrical Battery|battery]] provides a constant flow of [[Electrical Charge|charge]] and constant [[Potential Difference|potential difference]]. However, as the [[Potential Difference|potential difference]] across the [[capacitor]] changes as the [[Electrical Charge|charge]] stored in the [[capacitor]] changes. This provides a maximum [[Energy Efficiency|efficiency ]] of 50% to [[capacitor]]s which is far less than the [[Energy Efficiency|efficiency ]] of a [[Electrical Battery|battery]].

•<math>𝐸 = \frac{1}{2}𝐶𝑉^2</math>

•<math>𝐸 = \frac{1}{2}Q𝑉</math>

•<math>𝐸 = \frac{1}{2}\frac{Q^2}{C}</math>