《山东高考》一轮复习教师用书2021 第10章 实验14 探究影响感应电流方向的因素
实验十四 探究影响感应电流方向的因素一、实验目的探究影响感应电流方向的因素。二、实验原理如图所示,只要改变穿过闭合回路的磁通量,就可以使闭合回路产生感应电流,感应电流的有无通过连接在回路中的电流表的指针是否偏转来判定。三、实验器材条形磁铁、螺线管、灵敏电流计、导线。四、实验步骤1.按图连接电路,闭合开关,记录下G中流入电流方向与灵敏电流计G中指针偏转方向的关系。2.记下线圈绕向,将线圈和灵敏电流计构成通路。3.把条形磁铁N极(或S极)向下插入线圈中,并从线圈中拔出,每次记下电流计中指针偏转方向,然后根据步骤1的结论,判定出感应电流方向,从而可确定感应电流的磁场方向。五、数据处理1.实验现象记录...
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