(Solved): The power input to a 6-pole, 50Hz, 3-phase induction motor is 700W at no load and 10kW at ...

The power input to a 6-pole, $$50\mathrm{Hz}$$, 3-phase induction motor is $$700\mathrm{W}$$ at no load and $$10\mathrm{kW}$$ at full load. The no-load copper losses may be assumed negligible while the full-load stator and rotor copper losses are $$295\mathrm{W}$$ and $$310\mathrm{W}$$ respectively Find the full-load speed, shaft torque and efficiency of the motor, assuming rotational and core losses to be equal.