An 8 – pole, 450 V, 50 Hz, 3 phase induction motor has standstill impedance of  (0.3 + 2.4j) Ω /phase. What will be the total equivalent load resistance of the motor at the speed of 720 rpm

1
7.5 Ω
2
7.2 Ω
3
​20.6 Ω
4
22.5 Ω
5
21.6 Ω

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