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在教学过程中,笔者发现人教版高中《物理》选修3-1(2010年4月第3版,安徽第9次印刷)第三章“磁场”第3节、第4节分别有一处值得商榷。第一处:第3节“几种常见的磁场”中的“图3.3-7”(教材第88页)。教材意欲用此图告诉读者:“距离很近的两个平行的异名磁极之间的磁场(如图1,教材中图3.3-7),除边缘部分外,可以认为是匀强磁场”(教材中原文字)。
In the course of teaching, I found that PEP 3 “Physics” Elective 3 - 1 (April 2010, 3rd Edition, Anhui 9th Printing) Chapter III “Magnetic Field” Section 3, Section 4, respectively, there is a Department is debatable. The first one: Section 3.3 “Several Common Magnetic Fields” “Figure 3.3-7 ” (Text Page 88). Textbook intends to use this diagram to tell the reader: "Close to the magnetic field between two parallel heteronymous poles (Figure 1, Figure 3.3-7), in addition to the edge of the part can be considered uniform magnetic field (Text in the original text).