IBIKURIKIRA
Imashini ikoreshwa mugukoresha ibyuma bitatu byo gufungura no gufunga.Igice kiyobora kigizwe na contact, icyuma nintebe yo guhuza, kandi kanda kumasoko.Iyo switch ifunguye, uruziga ruzunguruka rutwarwa nububoko bukora kugirango ruzunguruke, kugirango insulator ikora iba hejuru.
Icyuma nuguhuza bitandukanijwe nicyuma, icyuma kizunguruka kizengurutse aho gihurira, hanyuma umubonano ukazamuka ujya kumwanya ufunguye munsi yo gutwara icyuma.Iyo ufunze, uruziga ruzunguruka rutwarwa nububoko bukora kugirango ruzunguruke, kugirango insulire ikora ikurura icyuma Icyuma kizunguruka hepfo, kandi gitwara umubonano kugirango kizunguruke nyuma yo guhura, hanyuma gihindukirira aho gifunga.