Changes

==Etymology==

==Etymology==

[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French, from charger

[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French, from charger

*Date: [http://www.wikipedia.org/wiki/13th_Century 13th century]

*Date: [https://www.wikipedia.org/wiki/13th_Century 13th century]

==Definitions==

==Definitions==

*1 a obsolete : a [[material]] load or [[weight]]  

*1 a obsolete : a [[material]] load or [[weight]]  

— in charge : having [[control]] or custody of something <he is in charge of the training program>

— in charge : having [[control]] or custody of something <he is in charge of the training program>

==Description==

==Description==

[[Electric]] '''charge''' is a [[fundamental]] conserved property of some subatomic [[particles]], which [[determines]] their [[electromagnetic]] [[interaction]]. Electrically charged [[matter]] is [[influenced]] by, and produces, [http://en.wikipedia.org/wiki/Electromagnetic_field electromagnetic fields]. The [[interaction]] between a moving charge and an electromagnetic field is the [[source]] of the [http://en.wikipedia.org/wiki/Electromagnetic_force electromagnetic force], which is one of the [http://en.wikipedia.org/wiki/Fundamental_interaction four fundamental forces].

[[Electric]] '''charge''' is a [[fundamental]] conserved property of some subatomic [[particles]], which [[determines]] their [[electromagnetic]] [[interaction]]. Electrically charged [[matter]] is [[influenced]] by, and produces, [https://en.wikipedia.org/wiki/Electromagnetic_field electromagnetic fields]. The [[interaction]] between a moving charge and an electromagnetic field is the [[source]] of the [https://en.wikipedia.org/wiki/Electromagnetic_force electromagnetic force], which is one of the [https://en.wikipedia.org/wiki/Fundamental_interaction four fundamental forces].

The [[electric]] charge on a [[body]] may be positive or negative. Two positively charged bodies [[experience]] a mutual repulsive force, as do two negatively charged bodies. A positively charged body and a negatively charged body experience an [[attractive]] [[force]]. The [[study]] of how charged bodies [[interact]] is [http://en.wikipedia.org/wiki/Classical_electrodynamics classical electrodynamics], which is accurate insofar as [[quantum]] effects can be ignored.

The [[electric]] charge on a [[body]] may be positive or negative. Two positively charged bodies [[experience]] a mutual repulsive force, as do two negatively charged bodies. A positively charged body and a negatively charged body experience an [[attractive]] [[force]]. The [[study]] of how charged bodies [[interact]] is [https://en.wikipedia.org/wiki/Classical_electrodynamics classical electrodynamics], which is accurate insofar as [[quantum]] effects can be ignored.

Twentieth-century [[experiments]] [[demonstrated]] that [[electric]] charge is [http://en.wikipedia.org/wiki/Quantization_(physics) quantized]: the charge of any [[system]], [[body]], or [[particle]] (except [http://en.wikipedia.org/wiki/Quarks quarks]) is an [http://en.wikipedia.org/wiki/Integer integer] multiple of the elementary charge, e, approximately [[equal]] to 1.602×10−19 coulombs. The [http://en.wikipedia.org/wiki/Proton proton] has a charge of e, and the [[electron]] has a charge of −e. The [[study]] of charged [[particles]], and how their [[interactions]] are mediated by [http://en.wikipedia.org/wiki/Photons photons], is [http://en.wikipedia.org/wiki/Quantum _electrodynamics quantum electrodynamics].

Twentieth-century [[experiments]] [[demonstrated]] that [[electric]] charge is [https://en.wikipedia.org/wiki/Quantization_(physics) quantized]: the charge of any [[system]], [[body]], or [[particle]] (except [https://en.wikipedia.org/wiki/Quarks quarks]) is an [https://en.wikipedia.org/wiki/Integer integer] multiple of the elementary charge, e, approximately [[equal]] to 1.602×10−19 coulombs. The [https://en.wikipedia.org/wiki/Proton proton] has a charge of e, and the [[electron]] has a charge of −e. The [[study]] of charged [[particles]], and how their [[interactions]] are mediated by [https://en.wikipedia.org/wiki/Photons photons], is [https://en.wikipedia.org/wiki/Quantum _electrodynamics quantum electrodynamics].

[[Category: Physics]]

[[Category: Physics]]