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Q8. A. List the factors that determine the starting torque of the three-phase induction motor. How does this torque generally compare with the value of the rated torque? B. A three-phase induction motor is will for four poles and is supplied from a 50 Hz system Calculate: i) the synchronous speed; ii) the speed of the rotor when the slip is 4 per cent; iii) the rotor frequency when the speed of the rotor is 600 r/min