Ma coil windings ndi zinthu zofunika kwambiri pazida zamagetsi zambiri kuti asinthe mphamvu yamagetsi kukhala mphamvu yamaginito kapena mosiyana. Izi ndizofunikira pakugwira ntchito kwa ma motors, ma transfoma, ndi ma inductors, pomwe ma waya amakhomedwa mozungulira pakati kapena mumlengalenga kuti apange mphamvu ya maginito pomwe magetsi adutsa. Kuchita bwino kwa koyilo yokhotakhota kumatengera zinthu zingapo, monga mtundu wa waya womwe umagwiritsidwa ntchito, kuchuluka kwa kutembenuka kwa koyilo, kapena zinthu zapakati. Kuphunzira mfundo zazikuluzikuluzi ndikofunikira kwa iwo omwe akufuna kuchita zamagetsi kapena uinjiniya wamagetsi, chifukwa ndi maziko opangira maluso apamwamba ndi chidziwitso.