If two 3-phase induction machines are mechanically coupled with each other. The two machines are supplied by 50 Hz and 60 Hz, respectively. the speed of the combination of both machines will be:

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Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.