Exam-style question
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When investigating magnetic flux linkage using a search coil, what is the expected outcome if the coil is moved rapidly through a magnetic field?.
- A.No change in induced emf.
- B.A decrease in induced emf.
- C.An increase in induced emf.
- D.A constant induced emf.
Model answer
What a good answer should say
- An increase in induced emf.
Explanation
Why this works
Moving the coil rapidly through a magnetic field increases the rate of change of magnetic flux, which according to Faraday's law results in a higher induced emf. This demonstrates the relationship between motion and induced voltage.
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