Chigwachi chimakhala mphamvu ngati mphamvu, zomwe zimapezeka kudzera mu drivemagragnetic coil mankhwala a elekinetineti, kenako mphamvu yamagetsi kudzera munthawi yowongolera valavu. Zachidziwikire, masika awa amatha kugwiritsidwa ntchito kuwongolera valavu yotsekerayo komanso valavu yotsegulira. Chifukwa chokhala ndi katunduyu titha kukhala ndi coil yomwe sinalimbikitsidwe pomwe mavesi a mpweya watsekedwa, omwe ndi otsekeka (ndi)
