Discussion
The stator winding of an induction machine is distributed over several slots per pole per phase in order to
Answer: B
Correct answer: produce a more nearly sinusoidal field distribution
A winding concentrated in one slot per pole per phase would produce a stepped, strongly harmonic field. Spreading it over several slots sums the contributions with a small phase displacement between them, which attenuates the harmonics and leaves a distribution much closer to a sinusoid.
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