Ma'anar wutar lantarki

A cikin electromagnetism, adadin wutar lantarki da ke ratsa kowane ɓangaren madubi a kowane lokaci ana kiransa ƙarfin halin yanzu, ko kuma kawai wutar lantarki. Alamar halin yanzu ita ce I, kuma naúrar ita ce ampere (A), ko kuma kawai “A” (André-Marie Ampère, 1775-1836, masanin kimiyyar kimiya da ilmin sinadarai na Faransa, wanda ya yi fice na nasarori a cikin nazarin tasirin lantarki kuma ya ba da gudummawa. zuwa ilimin lissafi da kimiyyar lissafi.
[1] Motsin jagora na yau da kullun na caji kyauta a cikin jagorar ƙarƙashin aikin ƙarfin filin lantarki yana samar da wutar lantarki.
[2] A cikin wutar lantarki, an ƙulla cewa alkiblar madaidaicin caji mai kyau ita ce ta halin yanzu. Bugu da ƙari, a cikin aikin injiniya, ana kuma amfani da madaidaicin jagorancin caji mai kyau a matsayin jagorancin halin yanzu. Girman na yanzu yana bayyana ta cajin Q yana gudana ta hanyar giciye na mai gudanarwa a kowane lokaci, wanda ake kira ƙarfin halin yanzu.
[3] Akwai nau'ikan dillalai da yawa a cikin yanayi waɗanda ke ɗaukar cajin lantarki. Misali: electrons masu motsi a cikin madugu, ions a cikin electrolytes, electrons da ions a cikin plasma, da quarks a hadrons. Motsin waɗannan masu ɗaukar kaya yana samar da wutar lantarki.