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Q#1 Induction Machines GATE EE 2003 MCQ +2 marks -0.66 marks

A 3-phase Inductor Motor is driving a constant torque load at rated voltage and frequency. If both voltage and frequency are halved, following statements related to the new condition if stator resistance, leakage reactance and core loss are ignored.

P        The difference between synchronous speed and actual         speed remains same

Q        The air-gap flux remains same

R        The stator current remains same

S        The p.u. slip remains same

Among the above, correct statements are

All

P, Q and R

Q, R and S

P and S

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Topic Questions Attempted Correct
Network Analysis 260 0 0
Signals and Systems 165 0 0
Control Systems 258 0 0
Analog Electronics 184 0 0
Digital Electronics 148 0 0
Electrical Machines 392 0 0
Power Electronics 237 0 0
Power Systems 344 0 0
EMFT EE 107 0 0
Measurement 158 0 0
Engineering Mathematics 225 0 0
General Aptitude 211 0 0