Inductance coil, wanda kuma aka sani da inductor, wani abu ne na lantarki da aka ƙera don adana makamashi a cikin filin maganadisu lokacin da wutar lantarki ke gudana ta cikinsa. Ya ƙunshi raunin waya a cikin nada, sau da yawa a kusa da ainihin abin da aka yi da ƙarfe, ferrite, ko iska. Babban aikin coil inductance shine adawa da canje-canje a halin yanzu, dukiya da aka sani da inductance, wanda aka auna a henries (H).