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Elektromagnetism Ühikud | Vaata ka | Välislingid | NavigeerimismenüürKalev Tarkpea, Henn Voolaid. ElektromagnetismElektrivälja ja magnetvälja omadusi kirjeldavate suuruste võrdlusHyperPhysics

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Elektromagnetism


elektromagnetväljafüüsikavälielektrilaengugaosakestelemagnetvälielektromagnetilise induktsioonielektrigeneraatoriteinduktsioonmootoritetrafodeelektrivoolumagnetitegaerirelatiivsusteooriaAlbert Einsteini










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Elektromagnetism




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Elektromagnetism
VFPt Solenoid correct2.svg

Elekter - Magnetism


Elektrostaatika


  • Elektrilaeng

  • Staatiline elekter

  • Coulomb'i seadus

  • Elektrivälja tugevus

  • Elektriline induktsioon

  • Gaussi seadus elektrivälja jaoks

  • Elektrivälja potentsiaal

  • Elektrostaatiline induktsioon

  • Elektriline dipoolmoment

  • Dielektriline polarisatsioon

  • Dielektrik





Magnetostaatika


  • Ampère'i seadus

  • Elektrivool

  • Magnetiline induktsioon

  • Magneetumus

  • Magneetikud

  • Magnetvoog

  • Biot'-Savarti seadus

  • Magnetiline dipoolmoment

  • Gaussi seadus magnetvälja jaoks





Elektrodünaamika


  • Lorentzi jõud

  • Elektromotoorjõud

  • Elektromagnetiline induktsioon

  • Faraday seadus

  • Lenzi reegel

  • Nihkevool

  • Maxwelli võrrandid

  • Elektromagnetväli

  • Elektromagnetiline kiirgus

  • Liénardi-Wiecherti potentsiaal

  • Maxwelli tensor

  • Poyntingi vector

  • Pöörisvool





Vooluahelad


  • Elektrivool

  • Pinge

  • Elektromotoorjõud

  • Ohmi seadus

  • Kirchhoffi seadused

  • Alalisvool

  • Vahelduvvool

  • Elektritakistus

  • Elektrijuhtivus

  • Mahtuvus

  • Induktiivsus

  • Memristiivsus

  • Näivtakistus

  • Resonaator

  • Lainejuht





Kovariantne formuleering


  • Elektromagnetvälja tensor

  • Elektromagnetvälja energia-impulsi tensor

  • Neli-vool

  • Elektromagnetvälja neli-potentsiaal





Teadlased


  • Ampère

  • Coulomb

  • Faraday

  • Gauss

  • Heaviside

  • Henry

  • Hertz

  • Lorentz

  • Maxwell

  • Tesla

  • Volta

  • Weber

  • Ørsted




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  • v

  • a

  • r


Elektromagnetism on elektromagnetvälja füüsika. Elektromagnetväli on väli, mis avaldab mõju elektrilaenguga osakestele ja mis on omakorda mõjutatud nendest osakestest ja nende liikumisest.


Muutuv magnetväli tekitab elektrivälja (see nn. elektromagnetilise induktsiooni nähtus on elektrigeneraatorite, induktsioonmootorite ja trafode tööpõhimõtte alus). Sarnaselt, muutuv elektriväli tekitab magnetvälja. Sellise elektri- ja magnetvälja vastastikuse sõltuvuse tõttu on mõistlik neid käsitleda seotud nähtusena - elektromagnetväljana.


Magnetväli tekib elektrilaengute liikumise ehk elektrivoolu tõttu. Magnetväli põhjustab magnetjõudude tekke, mis seonduvad tavaliselt magnetitega.


Elektromagnetismi teoreetilised järeldused viisid erirelatiivsusteooria väljatöötamiseni Albert Einsteini poolt 1905. aastal.



Ühikud |


Elektromagnetilised ühikud on osa elektriliste ühikute süsteemist ning põhinevad põhiliselt elektrivoolu magnetilistel omadustel. Ühikud on:




  • amper (vool)


  • kulon (laeng)


  • farad (mahtuvus)


  • henri (induktiivsus)


  • oom (takistus)


  • volt (elektriline potentsiaal)


  • vatt (võimsus)



Vaata ka |


  • Elektriväli

  • Magnetväli


Välislingid |


  • Kalev Tarkpea, Henn Voolaid. Elektromagnetism

  • Elektrivälja ja magnetvälja omadusi kirjeldavate suuruste võrdlus


  • HyperPhysics (inglise keeles)










Pärit leheküljelt "https://et.wikipedia.org/w/index.php?title=Elektromagnetism&oldid=4648024"










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