本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 通用国际物理
[单选题]
Doubling the number of loopq3ulgs/0r4 ho qm ccv/,vtosc.3 ).e*9 xvtwxs of wire in a coil produces what kind of change on thevqt,/e.v s.xo9cmv)cx* tw 3c induced $emf$, assuming all other factors remain constant?
A. The induced $emf$ is 4 times as much.
B. The induced $emf$ is twice times 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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