Faraday's Law Video Lessons

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Problem: A generator has a coil of wire rotating in a magnetic field. If the rotation rate increases, how is the maximum output voltage of the generator affected?a) increasesb) decreasesc) stays the samed) varies sinusoidally

FREE Expert Solution

The operation of a generator depends on Faraday's law of electromagnetic induction.

According to this law, the induced emf ina  coil depends on the change in the magnetic flux as:

ε=-dϕdt

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Problem Details

A generator has a coil of wire rotating in a magnetic field. If the rotation rate increases, how is the maximum output voltage of the generator affected?

a) increases

b) decreases

c) stays the same

d) varies sinusoidally

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