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Multi tool use
Multi tool use

ElekterElektrotehnika


füüsikaselektrotehnikasfüüsikaline suurustöödühiklaengupunktlaengskalaarne suuruspotentsiaalideElektriahelaelektromotoorjõududestalalispingeOhmi seadusest1776Henry CavendishElektrotehnikaselektriahelatealalispingetpolaarsusegavahelduvpingetväikepingemadalpingekõrgepingenimipingefaasijuhineutraaljuhivoltmeetriga










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Pinge (elekter)




Allikas: Vikipeedia






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Suuruse nimi
pinge, potentsiaalide vahe
Suuruse tähis
U, varutähis V

SI ühiku nimi
volt
SI ühiku tähisV










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


Pinge on füüsikas ja elektrotehnikas kasutatav füüsikaline suurus, mis iseloomustab kahe punkti vahelist elektrivälja potentsiaalide erinevust ning näitab, kui palju tööd tuleb teha ühiklaengu ümberpaigutamiseks ühest punktist teise:


U=AQ,displaystyle U=frac AQ,

kus Q on positiivne punktlaeng ja A on töö, mille elektriväli teeb selle laengu ümberpaigutamiseks. Elektripinge on skalaarne suurus.


Elektrivälja kahe mõõtepunkti vaheline pinge langeb enamasti kokku nende punktide potentsiaalide vahega, kuid ei võrdu süsteemi alguses ja lõpus mõõdetava pingega. Elektriahela pinged sõltuvad ahelale toimivatest elektromotoorjõududest, samuti ahela parameetritest ja seaduspärasustest (alalispinge korral näiteks Ohmi seadusest).


Pinge mõiste võttis 1776. aastal kasutusele inglise füüsik Henry Cavendish, kes uuris elektrinähtusi ja elektrilaengute jagunemist.


Elektrotehnikas on pinge elektriahelate ja -seadmete üks tähtsamaid tunnussuurusi. Eristatakse alalispinget (püsiva polaarsusega) ja vahelduvpinget (vahelduvasuunalise polaarsusega). Elektrisüsteemides kasutatakse ka mõisteid "väikepinge" (vahelduvpinge kuni 50 V, alalispinge kuni 120 V), "madalpinge" (kuni 1 kV) ja "kõrgepinge" (pinge üle 1 kV). Madalpingevõrgu nimipinge on 230 V (faasijuhi ja neutraaljuhi vahel).


Pinget mõõdetakse voltmeetriga.



Vaata ka |


  • Alalispinge

  • Vahelduvpinge

  • Nimipinge

  • Pingelang

  • Primaarpinge

  • Sekundaarpinge




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