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 shown in the diagram (which are assumed to hy1jx74ikz()a , vdwybe close t rt-8caf+uevh* u2vm0 o each other), the resistance of the left-hand circui 2rfh+8au*0tv m e-ucv t 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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