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    Computing
  3. Study Set
    DC Motor
  4. Exam
    Exam 5: D.C. Generator and Motor Efficiency, Testing and Braking Techniques
  5. Question
    In Variable Speed Motor
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In Variable Speed Motor

Question 1

Question 1

Multiple Choice

In variable speed motor


A) a stronger commutating field is needed at low speed than at high speed
B) a weaker commutating field is needed at low speed than at high speed
C) same commutating field is needed at low speed than at high speed
D) none of the above is correct

Correct Answer:

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