本题目来源于试卷: Electromagnetic Induction and Faraday’s Law and Lenz Law，类别为 美国物理杯赛(Physics Bowl)
[单选题]
05.33: The figure below shows a bar moving wlci 89wr/s/vhz ed(,to the right on two conduc a+ 9/te-e w+8simv6mhlqir6 iting rails. To make an induced current i in the direction indicated, in what direction would the magnetic field be in the area co m6h-vl 69rtm8 q eiiaw+s/ie+ntained within the conducting rails?
A. out of the page
B. into the page
C. to the right
D. to the left
E. It is impossible to create the current with a constant magnetic field.
参考答案: B
本题详细解析:
暂无
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