railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors Synchronous Motor Starting
An 8-pole, 3-phase induction motor operates from a supply whose frequency is 50 Hz. Calculate the speed at which the magnetic field of the stator is rotating.
1
900 rpm
2
850 rpm
3
750 rpm
4
800 rpm