如图所示,光滑绝缘的水平面上有两个离得很近的导体环a、b。将条

如图所示,光滑绝缘的水平面上有两个离得很近的导体环ab。将条形磁铁沿它们的正中竖直向下移动(不到达该平面),关于ab环的移动情况,下列说法中正确的是

A.保持静止                              B.相互靠近

C.相互远离                              D.因磁体的N极在哪边未知,无法判断

 

答案

C

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