Explanation: Space harmonics of the order 3,9,15,… i.e, triplen harmonics are absent. 3. When a single-phase winding is excited by an alternating current, then which of the following statements are correct?
A. It produces one stationary MMF wave
B. Produced MMF wave pulsates along its magnetic axis
C. It doesn’t produce two counter rotating MMF wave
D. All of the mentioned
Answer:A
Explanation: Space harmonics of the order 3,9,15,… i.e, triplen harmonics are absent. 3. When a single-phase winding is excited by an alternating current, then which of the following statements are correct?
A. It produces one stationary MMF wave B. Produced MMF wave pulsates along its magnetic axis C. It doesn’t produce two counter rotating MMF wave D. All of the mentioned