A) 1200 rpm
B) 1800 rpm
C) 1500 rpm
D) 400 rpm
Correct Answer: B
Solution :
The emf induced is directly proportional to rate at which flux is intercepted which varies directly as the speed of rotation of the generator. New speed \[\frac{\sigma }{\rho \lambda }\] \[\frac{\rho }{\sigma \lambda }\]
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