Auto Transformer:- It has a single winding on iron core and a part of winding is common to both primary and secondary.
Cottonseed: geeddi socodka soo saarida saxaafada hore iyo geeddi socodka soo saarista balaarinta, habka soo saarida waxay leedahay hal milatariga caadiga ah iyo labalaabinta habka leaching qayb ahaan.