Marka isbeddelka hadda isbeddelaya lagu quudiyo codka, magnetku wuxuu noqdaa koronto-magnet.Jihada hadda si joogto ah ayey isu beddeshaa, koronto-magnet-kuna waxa uu sii wadaa in uu hore iyo gadaal u socdo sababtoo ah "dhaqdhaqaaqa xoogga ah ee fiilada tamarta leh ee goobta magnetic", taas oo u kaxaysa basin warqad si uu u gariiro gadaal iyo gadaal.stereo wuxuu leeyahay cod.
Magnet-yada geesku inta badan waxa ka mid ah magnet ferrite iyo magnet NdFeB.Marka loo eego arjiga, magnets-ka ndFeB waxaa si weyn loogu isticmaalaa alaabada elegtarooniga ah, sida hard disk-yada, talefannada gacanta, taleefoonnada gacanta iyo aaladaha ku shaqeeya baytariyada.Codku waa qaylo.