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 number of loops of wueg9ep zhnab58 e*, jl-69kudo);eswire in a coil produces whbcft nt9q5(4tfi0 -r q.9sva aat kind of change on the induce4 t9cirt. -tnqb sfqfv95(0aad $emf$, 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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