Monga zida zatsopano zosinthira mphamvu ndi ma electromagnetic fields, ma plug-in coils amagwira ntchito molingana ndi mfundo zotseka. Kuchita bwino kwawo pakusamutsa mphamvu ndi chimodzi mwazinthu zochititsa chidwi, ndipo ndizinthu zofunika kwambiri zomwe kupezeka kwake kumafunikira pamakina pamene kutaya mphamvu kungayambitsidwe molakwika, kuchepetsa magwiridwe antchito ndi magwiridwe antchito. Izi zili choncho chifukwa mobwerezabwereza mu zinthu monga makina oyatsira magalimoto, plug in coils ndi yofunikira kuti atenge mphamvu yochepa ya batri ndikuisintha kukhala masauzande ambiri a batri omwe amatha kupanga spark yamagetsi mu mapulagi, ndiyeno kuyatsa mafuta. Kuphatikiza pa zonsezi, mu machitidwe ena apamwamba a HVAC (Kutentha, Kutulutsa mpweya ndi Air Conditioning), njira zogwira mtima komanso zogwira mtima zotumizira mphamvu zotentha (pakati pa kuzizira ndi kutentha) zimakhazikitsidwa.