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人教版课标实验教科书《物理》选修3—1在第四章《磁场》的《通电导线在磁场中受到的力》一节中,以磁电式电流表为背景介绍了辐向磁场分布的特点。笔者在实际教学中发现,很多学生在理解上出现了不少误区及困惑,甚至在部分教师间也存在一些争议。本文拟分析各种误区,并通过整合不同版本教材资源,探讨辐向磁场的具体分布情况,以期达到正本清源之目的。不妥之处,敬请批评指正。一、误区分析:一叶障目,不见泰山人教版课标实验教科书《物理》选修3-1第93页中用这样一段话描述了均匀辐向磁场的分布特点:“为了使电流表表
People’s Education Edition course standard experiment textbook ”Physics“ elective 3-1 In the fourth chapter ”magnetic field“ of the ”conductive wire in the magnetic field by the force“ section, with a magnetoelectric ammeter as the background of the radial magnetic field distribution Features. The author found in the actual teaching, many students in understanding there have been many errors and confusion, and even some teachers there are some controversies. This article intends to analyze various errors, and through the integration of different versions of textbook resources to explore the specific distribution of the radial magnetic field in order to achieve the purpose of the original Qingyuan. Inappropriate, please correct me criticism. First, the misunderstanding analysis: a leaf barrier, can not see the Taishan PEP Edition textbook ”Physical“ elective 3-1 page 93 with such a passage describes the distribution of uniform radial magnetic field: ”In order to make the ammeter table