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Mutual Inductance
12 questions By Tony R. Kuphaldt
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Question 1 of 12
When an electric current is passed through a coil of wire, what phenomenon occurs?
Reveal answerElectromagnetism.
Notes:Be sure that students understand the answer to this question beyond saying the word, “electromagnetism.” What, exactly, does this word mean? Reciting an equation is not a sufficient explanation, either. Ask them what some of the factors are that influence the strength of the electromagnetic effect.
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Question 2 of 12
When a coil of wire “cuts through” magnetic lines of flux, what phenomenon occurs?
Reveal answerElectromagnetic induction.
Notes:Be sure that students understand the answer to this question beyond saying the phrase, “electromagnetic induction.” What, exactly, does this phrase mean? Reciting an equation is not a sufficient explanation, either. Ask them what some of the factors are that influence the strength of the inductive effect.
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Question 3 of 12
If one coil of wire is located very close to another coil of wire, and an electric current is passed through the first coil whose magnitude changes over time, what phenomenon will occur in the second coil of wire?
Reveal answerA voltage will be induced in the second coil: mutual induction.
Notes:Be sure that students understand the answer to this question beyond saying the phrase, “mutual induction.” What, exactly, does this phrase mean? Reciting an equation is not a sufficient explanation, either. Ask them what some of the factors are that influence the strength of the mutual inductive effect.
