For which of the following applications a D.C. motor is preferred over an A.C. motor?
A) Low speed operation
B) High speed operation
C) Variable speed operation
D) Fixed speed operation
Correct Answer:
Verified
Q2: Sparking at the commutator of a D.C.
Q3: Which of the following motor is preferred
Q4: If the supply voltage for a D.C.
Q5: Which one of the following is not
Q6: The mechanical power developed by a shunt
Q8: In D.C. machines the residual magnetism is
Q9: Which D.C. motor is generally preferred for
Q10: Three point starter can be used for
A)series
Q11: Sparking, is discouraged in a D.C. motor
Q12: Speed control by Ward Leonard method gives
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