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【单选题】
如图 1-1-4 所示,闭合圆导线线圈放置在磁场中,线圈平面与磁场平行,其中 ac 、 bd 分别是平行和垂直于磁场方向的两条直径.试分析使线圈做如下运动时,能产生感应电流的是 ( )
A.
使线圈在纸面内
B.
使线圈平面沿垂直纸面方向向纸外
C.
使线圈以 ac 为轴转动
D.
使线圈以 bd 为轴转动
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