Explanation: f/(p/2) revolutions in one second is also correct because f cycles are completed in one second. ns(rotating field speed in revolutions per second) = 2f/p or Ns = 120f/p r.p.m. 2. The speed at which rotating magnetic field revolves is called
A. Induction speed
B. Synchronous speed
C. Relative speed
D. Rotating speed
Answer:A
Explanation: f/(p/2) revolutions in one second is also correct because f cycles are completed in one second. ns(rotating field speed in revolutions per second) = 2f/p or Ns = 120f/p r.p.m. 2. The speed at which rotating magnetic field revolves is called
A. Induction speed B. Synchronous speed C. Relative speed D. Rotating speed
Explanation: Rotating field speed (Ns) = 120f/(p r.p.m) = synchronous speed. 3. What is the amplitude of rotating MMF produced as a result of m-phase currents flowing in m-phase windings?