The coil spam
A. must be exactly equal to people pitch.
B. may or may not be exactly equal to people pitch.
C. can never be equal to pole pitch.
D. none of above.
Answer: B
Share your understanding of this question with the correct explanation.
The coil span in a motor refers to the angular span or distance between the two coil sides or coil ends belonging to the same coil. The coil span may or may not be exactly equal to the pole pitch.
In some motor designs, the coil span is chosen to be equal to the pole pitch for specific reasons such as achieving better distribution of magnetic flux or reducing certain harmonics. However, in many cases, the coil span is intentionally designed to be different from the pole pitch to achieve specific performance characteristics.
Therefore, the correct answer is B: The coil span may or may not be exactly equal to the pole pitch.