Ku mari fiilada hawada ee danab yar oo qaawan (Cu.Ama Alu) oo ku xiran fiilada dahaaran ama kondulatorka qurxinta hore (Cu,Ama Alu.) Khadka ugu muhiimsan: Cu ama Alu. Khadka tuubada: Cu dahaaran ama Alu. Jidhka dahaarka leh waxa laga sameeyay agab xoog sare leh, cimilo ahaan iyo farsamo ahaan u adkaysta.