The armature MMF of a DC machine has
A. triangular space distribution and rotates at the speed of armature.
B. trapezoidal space distribution and is stationary in space.
C. stepped space distribution and rotates at the speed of armature.
D. triangular space distribution and is stationary in space.
Answer:D
The armature MMF of a DC machine has
A. triangular space distribution and rotates at the speed of armature. B. trapezoidal space distribution and is stationary in space. C. stepped space distribution and rotates at the speed of armature. D. triangular space distribution and is stationary in space.