In D.C. machines the number of slots per pole usually lies

1.	In D.C. machines the number of slots per pole usually lies
A.	between 2 to 4
B.	between 6 to 8
C.	between 9 to 16
D.	between 20 to 30
Answer» D. between 20 to 30

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In D.C. machines the number of slots per pole usually lies

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