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For 3-phase induction motor, as load increases from no load towards the full load, torque _______ slip.

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For 3-phase induction motor, as load increases from no load towards the full load, torque _______ slip.

(a) increases in proportion to

(b) decreases in proportion to

(c) remains constant to

(d) increases hyperbolically to

The question was asked during an interview.

My enquiry is from Starting of Polyphase Induction Motors-II topic in division Starting of Induction Motors of Electrical Machines

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The correct answer is (a) increases in proportion to

The explanation: For the lower slip, torque will increase proportionally to the slip as verified by the torque slip characteristic.

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