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学习了磁场对电流的作用和电磁感应后,许多同学容易对相关的现象、规律及其应用产生混淆,从而在解题过程中出现错误,失分很多.因而在教学过程中不断反思,怎样让学生正确区别磁场对电流的作用与磁生电呢?本文是笔者在教学中的一点体会.1首先让学生会选择器材磁场对电流的作用:有磁场就要有磁铁;有电流就要有电源和闭合电路;有作用力就是要受到力的作用;通电导线在哪受到力的作用,受到磁体的磁力,那么要
After learning the effect of magnetic field on current and electromagnetic induction, many students easily confused with the related phenomena, laws and their applications, so there are many mistakes and many points lost during the process of solving problems, so they constantly reflect on how to make Students correctly distinguish the role of the magnetic field on the current and magnetic electricity it? This article is the author in teaching a little experience .1 first let the students will choose equipment magnetic field on the current role: a magnetic field there must be a magnet; there is a current power supply and Closed circuit; a force is to be the role of force; energized wire where the role of force by the magnetic force of the magnet, then