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According to Faraday's Law,a Necessary and Sufficient Condition for an Electromotive

Question 37

Multiple Choice

According to Faraday's law,a necessary and sufficient condition for an electromotive force to be induced in a closed circuit loop is the presence in the loop of


A) a magnetic field.
B) magnetic materials.
C) an electric current.
D) a time-varying magnetic flux.
E) a time-varying magnetic field.

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