In D.C. machines the width of the duct is usually
A. 4 mm
B. 6 mm
C. 8 mm
D. 10 mm
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Answer: D
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In D.C. machines the width of the duct is usually
A. 4 mm
B. 6 mm
C. 8 mm
D. 10 mm
Answer: D
Share your understanding of this question with the correct explanation.