The Maximum Induced Emf in a Generator Whose Coils Are

question 16

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

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