The frequency of rotor induced emf, for a line connected 3 phase 50 Hz – McqOptions

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1.	The frequency of rotor induced emf, for a line connected 3 phase 50 Hz squirrel cage induction motor, running at a slip of 4% is:
A.	2 Hz
B.	18.5 Hz
C.	4 Hz
D.	3/4 Hz
Answer» B. 18.5 Hz

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