engineering recuitment BEL Probationary Engineers Mock Test 2025 Electrical Machines Alternator and Synchronous Motors
A 4-pole generator is running at 1200 rpm. The frequency and time period of the emf generated in its coils respectively
1
50 Hz, 0.02 sec
2
40 Hz, 0.025 sec
3
300 Hz, 0.00333 sec
4
2400 Hz, \(\frac{1}{2400}\) sec