论文部分内容阅读
1 问题的提出在物理教学过程中 ,演示实验是学生认识物理规律的感性基础 ,是学生加深对物理概念理解的重要环节。人教版《全日制普通高级中学教科书 (必修加选修 )物理第二册》第十八章第三节中研究电感对交变电流阻碍作用的实验电路如图 1,是利用双刀双掷开关S可以分别把这个
1 In the physics teaching process, the demonstration of the problem is that the demonstration experiment is the perceptual basis for the students to understand the laws of physics, and is an important part of the students’ understanding of the physical concept. The experimental circuit of the PEP “Full-time Ordinary High School Textbook (Required plus Optional) Physics Book 2” in Chapter 18, Section 3, which studies the effect of the inductance on the alternating current obstruction, is shown in Figure 1. It is a double-pole double-throw switch. S can separate this