The field winding of a 4-pole dc generator consists of 4 coils connected in series, each coil being wound with 1200 turns. When the field is excited, there is a magnetic flux of 0.04 Wb/pole. If the field switch is opened at such a speed that the flux falls to the residual value of 0.004 Wb/pole in 0.1 second, calculate the average value of emf induced across the field winding ter minals.

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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.