A 4-pole, 3-phase IM operates from a supply with frequency 50 Hz. Calc – McqOptions

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1.	A 4-pole, 3-phase IM operates from a supply with frequency 50 Hz. Calculate the speed at which the magnetic field of stator rotates.
A.	90 rpm
B.	1500 rpm
C.	1440 rpm
D.	600 rpm
Answer» C. 1440 rpm

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