A cumulatively compounded dc motor runs at a ___

Multiple Choice Questions Electrical Machines MCQ
1

Consider the following statements.

A cumulatively compounded dc motor runs at a speed N1 rpm drawing an armature current of I amperes.

If, keeping the load torque constant, the series field winding is short-circuited, then the

  1. speed of the motor will increase.
  2. armature current will increase.
  3. armature current will decrease.
  4. speed of the motor will decrease.

of these statements

A. 3 and 4 are correct.
B. 1 and 4 are correct.
C. 2 and 4 are correct.
D. 1 and 2 are correct

Show Answer

Answer: D

Share your understanding of this question with the correct explanation.