A 4 pole, 50 Hz, three-phase induction motor has a rotor resistance of 4 Ω/ph and a standstill reactance of 7 Ω/ph.
With no external resistance in the rotor circuit, the starting torque is 100 Nm.
If a 3.5 Ω resistance was added in each rotor phase, the starting torque is _____ (Nm).Enter numerical value using the virtual keypad. Round off where necessary.