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The stator and the rotor of a 3-phase. 4-pole wound rotor induction motor are excited respectively from a 50 Hz and 30 Hz source of appropriate voltage. Neglecting al] losses, what is/are the possible no-load speed/speeds at which the motor would run? | |
A. | 1,500 rpm and 900 rpm. [Wrong Answer] |
B. | 2,400 rpm and 600 rpm. [Correct Answer] |
C. | 2.400 rpm only [Wrong Answer] |
D. | 600 rpm only [Wrong Answer] |