本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 国际高中通用物理
[单选题]
Doubling the strength of the magne x.joaubacbd *3u94jd k+er, (tic field through a loop of wire produces wh 2o at43c3nkqhat kind of change on the ihokn234q3t canduced $emf$, assuming all other factors remain constant?
A. The induced $emf$ is 4 times as much.
B. The induced $emf$ is twice as much.
C. The induced $emf$ is half as much.
D. There is no change in the induced $emf$.
参考答案: B
本题详细解析:
暂无
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