Electromagnetic Induction and Faraday’s Law and Lenz Law (id: 078c16a1e)

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]
07.34 For the solenoids sya6 p ,yi5an46p7 umedhol5 -z)man5deaswvq+h09 g0w wwn in the diagram (which are assumed to be close to each other), the resistance of the left-hand circuit is slowly increased. In which direction does the galvanometer needle in the right-hand circuit move in respv9wwz5g 0-+0awl ) qshamdn5 eonse to this change?

A. The needle deflects to the left.
B. The needle deflects to the right.
C. The needle oscillates back and forth.
D. The needle rotates in counterclockwise circles
E. The needle never moves.


参考答案:  A


本题详细解析: 暂无

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