Ma'anar ƙamus na "Maɗaukakin Flux Unit" yana nufin ma'auni da ake amfani da shi don ƙididdige motsin maganadisu, wanda shine adadin filin maganadisu da ke wucewa ta wurin da aka bayar. Ɗaya daga cikin misalin naúrar motsin maganadisu ita ce Weber (Wb), wanda aka ayyana shi a matsayin maɗaukakiyar motsin da ke wucewa ta wani yanki na murabba'in murabba'in mita ɗaya lokacin da filin maganadisu daidai da wancan yanki yana da girman tesla ɗaya. Sauran raka'o'in motsin maganadisu sun haɗa da Maxwell (Mx) da Gauss (G), kodayake waɗannan raka'o'in ba a cika amfani da su ba a aikace-aikacen kimiyyar zamani.