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 soleno 5st-tohdvax m:q vy7.;, . fxiids shown t:( r 2cm99gtfud b6wv in the diagram (which are assumed to be close to each other), the resistance of the left-ha dtf2b gr9w( vtmu:c96 nd circuit is slowly increased. In which direction does the galvanometer needle in the right-hand circuit move in response 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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