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a 3 phase slip ring induction motor is wound for 4 poles on
stator and 6 poles on rotor; when 3 phase balanced voltage
source at 50 hz is applied to motor it will run at
a)1500rpm b)1000rpm c)750 rpm d)zero rpm
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Answer Posted / pramit dutta
i think the question is incomplete ,
we know n=(1-s)ns , so, ns=(120*50)/4=1500 rpm.
so we need to know the slip of motor then we find answer.
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