GATE Electrical Engineering (EE) 2014 Shift 1 Solved Paper

A 3 phase, 50 Hz, six pole induction motor has a rotor resistance of 0.1 Ω and reactance of 0.5 Ω. Neglect the voltage drop in stator and assume that the rotor resistance is constant. Given that the full load slip is 5%, the ratio of maximum torque to full load torque is approximately equal to