Multiple Choice
The maximum induced emf in a generator whose coils are rotating at 240 rpm is 35 V. If, instead, it is desired to generate a maximum emf of 45 V but with half the magnetic field, what rotation rate must be used?
A) 380 rpm
B) 190 rpm
C) 310 rpm
D) 165 rpm
E) 620 rpm
Correct Answer:

Verified
Correct Answer:
Verified
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