题目
题型:黑龙江省月考题难度:来源:
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答案
核心考点
试题【如图所示,一个由导体制成的矩形线圈,以恒定速度v运动,从无场区域进入匀强磁场区域,然后出来. 若取逆时针方向为电流的正方向,那么在下图中所示的图像中,能正确反映】;主要考察你对法拉第电磁感应定律及应用等知识点的理解。[详细]
举一反三
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(1)当滑片P较快地向左滑动时,甲表指针的偏转方向是______,乙表指针的偏转方向是______.(填“向右偏”、“向左偏”或“不偏转”)
(2)断开开关,待电路稳定后再迅速闭合开关,乙表的偏转情况是______(填“向左偏”、“向右偏”或“不偏转”)
(3)从上述实验可以初步得出结论:______.
![魔方格](http://img.shitiku.com.cn/uploads/allimg/20200115/20200115154510-47781.png)