Imathiriyeli yokhuseleko lokusingqongileyo: Izincamathelisi zemagnethi zenziwe ngekhadibhodi eqinileyo kunye nezixhobo ezinamandla zemagneti.Ikhadibhodi enzima ayinavumba kwaye ayinayo ityhefu, kwaye imagnethi inamathele ngokuqinileyo kwikhadibhodi kwaye ayiyi kuwa lula.Imiphetho yezincamathelisi zikamazibuthe zingqukuva kwaye zikhazimlisiwe ukuze zingonzakali izandla zomntwana wakho ngaphandle kokuzisika.Ngelo xesha, umphezulu wephepha lamagnetic uhlanganiswe nefilimu ecwebezelayo engenamanzi, ehlala ixesha elide.