1.

What does the space angle in the equation Fr( ,t)=3/2Fmcos( - t) for MMF produced when 3-phase balanced windings excited by three phase balanced currents represent?

A. MMF wave at any moment is sinusoidally distributed in space
B. Entire MMF waveform is travelling at (constant angular speed) synchronous speed
C. MMF wave is of constant amplitude
D. None of the mentioned
Answer» B. Entire MMF waveform is travelling at (constant angular speed) synchronous speed


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