Why are the cast iron yokes used in small dv machine? All Questions › Category: Electrical Machines › Why are the cast iron yokes used in small dv machine? 0 Vote Up Vote Down Akash Tiwari asked 4 years ago 2 Answers 0 Vote Up Vote Down Akash Tiwari answered 4 years ago On account of low cost. 0 Vote Up Vote Down Akash Tiwari answered 4 years ago To reduce the eddy current loss.