()为了探究“感应电流产生的条件”,甲同学将电池组、滑动变器

()为了探究“感应电流产生的条件”,甲同学将电池组、滑动变器、带铁芯的线圈A、线圈B、电流计及开关如图连接。经乙同学检查后发现甲同学接线有错误,应该是___________(用导线两端的字母符号表示)。

乙同学认为:在实验开始前必须首先判断电流计指针的偏转方向与流入电表的电流方向的关系。甲同学认为:没有必要此项实验操作。你认为_______同学的说法是正确的,理由是____________________________。

答案

拆除gh导线,甲,该实验只需判断有没有产生感应电流,不必判断感应电流的方向,


解析:

暂无解析

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