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    Engineering
  3. Study Set
    Design of Electrical Machines
  4. Exam
    Exam 4: Design and Operation of DC Machines
  5. Question
    Which of the Following Problem Arises in D
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Which of the Following Problem Arises in D

Question 25

Question 25

Multiple Choice

Which of the following problem arises in D.C. motors which are fed from thyristor bridge circuits ?


A) Increased I R losses
B) Increased core losses
C) Poor commutation
D) All of the above

Correct Answer:

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