Ma coil a Inductor ali pamtima pazida zambiri zamagetsi, kuchokera ku mafoni a m'manja kupita ku machitidwe ongowonjezera mphamvu. Monga chimodzi mwazinthu zofunika kwambiri pamagetsi, njira yokhotakhota ma koyilowa yasintha kwambiri pazaka zambiri. M'nkhaniyi, tiwona mbiri yakale, zomwe zikuchitika, komanso momwe tsogolo laukadaulo wa inductor coil winding likuwonekera, tikuyang'ana kwambiri zopita patsogolo monga makina, miniaturization, ndi kulondola.