论文部分内容阅读
高中《物理》(必修加选修)第二册“电磁感应”章节的习题中,给出了一道判断用磁铁分别接近或移开闭合与断开的铝环的电磁感应演示实验,曾有许多同仁对该实验进行改进,并提出了一些问题,如磁铁接近、远离断开的铝环时,铝环会不会动?有没有“感应电流”?这些问题一直很困惑.经过多年的研究,我们对该实验进行了重新设计,增强了实验的灵敏度和观
In the exercises of High School “Physics” (Compulsory and Optional) Booklet 2 “Induction of Electromagnetic Induction”, an electromagnetic induction demonstration experiment was conducted to judge whether to close or remove the closed and disconnected aluminum rings with magnets. Many colleagues improved the experiment and raised some questions. For example, when the magnet is close to and away from the broken aluminum ring, will the aluminum ring be subject to “inductive current?” For the study, we redesigned the experiment to enhance the sensitivity and view of the experiment.