railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors Alternator EMF Equation
An alternator on open circuit generates 440 V at 60 Hz when the field current is 4 A. What is the value of open circuit emf for a frequency of 50 Hz and the field of 3A? (Neglecting Saturation).
1
275 V
2
396 V
3
488.88 V
4
704 V