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Faraday's law of induction: Example problem

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Consider a loop of wire in an external magnetic field. Which of the following choices are consistent with Faraday's Law of Induction?

There will be an induced EMF if the external B field is weak.
There will be an induced EMF if the external B field is strong.
There will be an induced EMF if the external B field is changing.
There will be an induced EMF if the external B field is constant.
There will be an induced EMF if the external B field is zero.

One correct answer.

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Solution Summary

Provides steps necessary to determine which of the choices are consistent with the Law of Induction.

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There will be an induced EMF if the external B field is changing.

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