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- Capacitance abstract "Capacitance is the ability of a body to store an electrical charge. Any object that can be electrically charged exhibits capacitance. A common form of energy storage device is a parallel-plate capacitor. In a parallel plate capacitor, capacitance is directly proportional to the surface area of the conductor plates and inversely proportional to the separation distance between the plates. If the charges on the plates are +q and −q, and V gives the voltage between the plates, then the capacitance C is given bywhich gives the voltage/current relationshipThe capacitance is a function only of the physical dimensions (geometry) of the conductors and the permittivity of the dielectric. It is independent of the potential difference between the conductors and the total charge on them.The SI unit of capacitance is the farad (symbol: F), named after the English physicist Michael Faraday. A 1 farad capacitor, when charged with 1 coulomb of electrical charge, has a potential difference of 1 volt between its plates. Historically, a farad was regarded as an inconveniently large unit, both electrically and physically. Its subdivisions were invariably used, namely the microfarad, nanofarad and picofarad. More recently, technology has advanced such that capacitors of 1 farad and greater can be constructed in a structure little larger than a coin battery (so-called 'supercapacitors'). Such capacitors are principally used for energy storage replacing more traditional batteries.The energy (measured in joules) stored in a capacitor is equal to the work done to charge it. Consider a capacitor of capacitance C, holding a charge +q on one plate and −q on the other. Moving a small element of charge dq from one plate to the other against the potential difference V = q/C requires the work dW:where W is the work measured in joules, q is the charge measured in coulombs and C is the capacitance, measured in farads.The energy stored in a capacitor is found by integrating this equation. Starting with an uncharged capacitance (q = 0) and moving charge from one plate to the other until the plates have charge +Q and −Q requires the work W:".
- Capacitance wikiPageID "140711".
- Capacitance wikiPageRevisionID "606675730".
- Capacitance hasPhotoCollection Capacitance.
- Capacitance symbols "C".
- Capacitance unit Farad.
- Capacitance subject Category:Concepts_in_physics.
- Capacitance subject Category:Electricity.
- Capacitance subject Category:Electronics.
- Capacitance subject Category:Physical_quantities.
- Capacitance comment "Capacitance is the ability of a body to store an electrical charge. Any object that can be electrically charged exhibits capacitance. A common form of energy storage device is a parallel-plate capacitor. In a parallel plate capacitor, capacitance is directly proportional to the surface area of the conductor plates and inversely proportional to the separation distance between the plates.".
- Capacitance label "Capacidad eléctrica".
- Capacitance label "Capacitance".
- Capacitance label "Capacità elettrica".
- Capacitance label "Capacitância".
- Capacitance label "Capacité électrique".
- Capacitance label "Elektrische Kapazität".
- Capacitance label "Elektrische capaciteit".
- Capacitance label "Pojemność elektryczna".
- Capacitance label "Электрическая ёмкость".
- Capacitance label "سعة كهربية".
- Capacitance label "電容".
- Capacitance label "静電容量".
- Capacitance sameAs Elektrická_kapacita.
- Capacitance sameAs Elektrische_Kapazität.
- Capacitance sameAs Χωρητικότητα_(ηλεκτρισμός).
- Capacitance sameAs Capacidad_eléctrica.
- Capacitance sameAs Capacité_électrique.
- Capacitance sameAs Kapasitansi.
- Capacitance sameAs Capacità_elettrica.
- Capacitance sameAs 静電容量.
- Capacitance sameAs 전기_용량.
- Capacitance sameAs Elektrische_capaciteit.
- Capacitance sameAs Pojemność_elektryczna.
- Capacitance sameAs Capacitância.
- Capacitance sameAs m.011ks6.
- Capacitance sameAs Q164399.
- Capacitance sameAs Q164399.
- Capacitance wasDerivedFrom Capacitance?oldid=606675730.
- Capacitance isPrimaryTopicOf Capacitance.