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Created page with "==Key Stage 5== ===Meaning=== Capacitor energy refers to the energy stored in a capacitor due to the separation of charge. ===About Capacitor En..."
==Key Stage 5==
===Meaning===
[[Capacitor energy]] refers to the energy stored in a [[capacitor]] due to the separation of [[Electrical Charge|charge]].
===About Capacitor Energy===
*[[Energy]] stored in a [[capacitor]] can be used in various applications like powering the lights designed to flash and providing [[energy]] for defibrillators.
*[[Capacitor]]s store energy in the [[Electric Field|electric field]] between their plates.
The stored [[energy]] is released when the [[capacitor]] is [[Capacitor Discharge|discharged]].
*[[Capacitor]]s can deliver [[energy]] quickly compared to [[Electrical Battery|batteries]].
*Used in [[Power Supply|power supplies]] to smooth out fluctuations in [[Potential Difference|voltage]].
*The [[energy]] stored in a [[capacitor]] is half the [[energy]] required to charge the capacitor. Since the [[Electrical Work|work done]] to charge the capacitor is given by the product of the [[Electrical Charge|charge]] supplied by the 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 efficiency of 50% to [[capacitor]]s which is far less than the efficiency of a [[Electrical Battery|battery]].
===Formula===
The energy πΈ stored in a capacitor is given by any of the three following formulae:
<math>πΈ = \frac{1}{2}πΆπ^2</math>
<math>πΈ = \frac{1}{2}Qπ</math>
<math>πΈ = \frac{1}{2}\frac{Q^2}{C}</math>
Where:
πΈ is the [[energy]] stored in the [[capacitor]]
πΆ is the [[capacitance]] of the capacitor
and
π is the [[Potential Difference|potential difference]] across the [[capacitor]].
===Meaning===
[[Capacitor energy]] refers to the energy stored in a [[capacitor]] due to the separation of [[Electrical Charge|charge]].
===About Capacitor Energy===
*[[Energy]] stored in a [[capacitor]] can be used in various applications like powering the lights designed to flash and providing [[energy]] for defibrillators.
*[[Capacitor]]s store energy in the [[Electric Field|electric field]] between their plates.
The stored [[energy]] is released when the [[capacitor]] is [[Capacitor Discharge|discharged]].
*[[Capacitor]]s can deliver [[energy]] quickly compared to [[Electrical Battery|batteries]].
*Used in [[Power Supply|power supplies]] to smooth out fluctuations in [[Potential Difference|voltage]].
*The [[energy]] stored in a [[capacitor]] is half the [[energy]] required to charge the capacitor. Since the [[Electrical Work|work done]] to charge the capacitor is given by the product of the [[Electrical Charge|charge]] supplied by the 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 efficiency of 50% to [[capacitor]]s which is far less than the efficiency of a [[Electrical Battery|battery]].
===Formula===
The energy πΈ stored in a capacitor is given by any of the three following formulae:
<math>πΈ = \frac{1}{2}πΆπ^2</math>
<math>πΈ = \frac{1}{2}Qπ</math>
<math>πΈ = \frac{1}{2}\frac{Q^2}{C}</math>
Where:
πΈ is the [[energy]] stored in the [[capacitor]]
πΆ is the [[capacitance]] of the capacitor
and
π is the [[Potential Difference|potential difference]] across the [[capacitor]].