Xa AC yangoku idlula ngocingo, indawo enemagnethi etshintshanayo ngeke iveliswe malunga nocingo. Inxalenye yangaphakathi ye-conductor yonke kwi-alternating field magnetic iya kuvelisa induced yangoku. Ngenxa yokuba olu hlobo lwangoku olunyanzelweyo lwenza i-loop evaliweyo ngaphakathi kwe-conductor yonke, efana ne-vortex yamanzi, ibizwa ngokuba Eddy yangoku. I-Eddy yangoku ayiyi kuchitha amandla ombane kuphela, ukunciphisa ukusebenza kakuhle kwezixhobo zombane, kodwa kubangele ukufudumeza kwezixhobo zombane (ezifana ne-transformer core), okuya kuchaphazela ukusebenza okuqhelekileyo kwezixhobo kwiimeko ezinzulu.