umuringa wa cathode ni ubwoko bwibyuma bidafite fer bifitanye isano rya bugufi nabantu.Ikoreshwa cyane mumashanyarazi, inganda zoroheje, Gukora imashini, inganda zubaka, inganda zigihugu zirinda igihugu nizindi nzego.Ikoreshwa mukuzunguruka kwinsinga zitandukanye, insinga, moteri, transformateur, guhinduranya, imbaho zicapye.Gukora inganda zinganda nibikoresho, ibikoresho, ibikoresho byo kunyerera, ibishushanyo, guhinduranya ubushyuhe na pompe.Ikindi kandi gikora vacuum, ikigega cya distillation, ikigega cyo gutekamo nibindi nibindi.Bikoreshwa kandi mubikorwa byo kwirwanaho gukora amasasu, ibisasu, ibice byimbunda, nibindi.