ka'ida na electromagnetic shigar dumama
A cikin 1831 Michael Faraday ya gano dumama shigar da wutar lantarki. Ainihin ka'idar motsi wuta wani nau'i ne na binciken Faraday da aka yi amfani da shi. Gaskiyar ita ce, AC halin yanzu da ke gudana ta hanyar da'ira yana rinjayar motsin maganadisu na wata da'ira ta biyu da ke kusa da shi. Juyin halin yanzu a cikin da'irar farko ya ba da amsar yadda ake samar da yanayin halin yanzu mai ban mamaki a kewayen da'irar sakandare. Ganowar Faraday ya haifar da haɓaka injinan lantarki, janareta, transfoma, da na'urorin sadarwa mara waya.Aikinsa, duk da haka, bai kasance mara aibi ba. Rashin zafi, wanda ke faruwa yayin aiwatar da dumama shigar, ya kasance babban ciwon kai wanda ke lalata gabaɗayan aikin tsarin. Masu bincike sun nemi rage zafin zafi ta hanyar sanya firam ɗin maganadisu da aka sanya a cikin motar ko mai canza canji.
Rashin zafi, wanda ke faruwa a cikin tsarin shigar da wutar lantarki, za a iya juya shi zuwa makamashi mai amfani a cikin tsarin dumama wutar lantarki ta hanyar amfani da wannan doka.Masana'antu da yawa sun amfana da wannan sabon ci gaba ta hanyar aiwatar da dumama.
