Multiple Choice Question (MCQ)

Question: what is the speed in r.p.m of the 2 pole, 50Hz of an alternator? | ಆವರ್ತಕದ 2 ಪೋಲ್, 50Hz ನ r.p.m ವೇಗ ಎಷ್ಟು?
A. 50 rpm
B. 100 rpm
C. 1500 rpm
D. 3000 rpm
Correct Answer: 3000 rpm