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物理练习/感应电流
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来自维基教科书，一个开放世界的开放书籍
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物理练习
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一个导电环正置于区域内，区域中的磁场正在减弱并垂直于环平面。如果您沿着磁场线方向观察，感应电流会是什么方向？
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书籍：物理练习
华夏公益教科书
