Q.

The armature mmf of a dc machine has 

  • ATriangular space distribution and rotates at the speed of armature 
  • BTrapezoidal space distribution and is stationary in space 
  • CStepped distribution and rotates the speed of armature 
  • DTriangular space distribution and is stationary in space
Correct Answer : (D)

Triangular space distribution and is stationary in space

Hints :

The armature MMF of a dc machine has Triangular space distribution and is stationary in space.

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