A 10 kW, 400 V, 3-phase, 4-pole, 50 Hz induction motor develops the ra – McqOptions

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1.	A 10 kW, 400 V, 3-phase, 4-pole, 50 Hz induction motor develops the rated output at rated voltage with its slip rings shorted. The maximum torque is twice the full load torque occurs at the slip of 10% with zero external resistance in the rotor circuit. An external resistance is now tripled in the rotor circuit. Then the stator current will
A.	remain constant
B.	increase
C.	decrease
D.	any of the mentioned
Answer» B. increase

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