I-conductivity kagesi ye-graphite inhle kakhulu, idlula izinsimbi eziningi kanye nezikhathi ezingamakhulu okungezona izinsimbi, ngakho-ke kukhiqizwa izingxenye eziqhutshwayo ezifana nama-electrode namabhulashi e-carbon;
Indima ethile ye-carbon brush
Ozibuthe be-NdFeB njengamanje bangomazibuthe abanamandla kakhulu unomphela.
Amamotho angenawo amabhulashi ikakhulukazi asebenzisa omazibuthe be-NdFeB abangasebenzi kahle,