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高中物理的电磁感应做为一个重要的组成部分,更多的是为了大学中的电磁学做基础引入的知识,所以在高中物理的学习研究中,更多的偏向于基础理论的学习及分析。电磁感应部分主要围绕着法拉利电磁感应定律及楞次定律两个重要的基础知识点进行分析的,以研究磁生电为主体,配合电生磁的理论进行电磁间的相互连接转化。也就是以导体切割磁感线运动产生感应电动势的动生电动势和通过闭合回路的磁通量变化产生感应电流的感生电动势为主体,配合通电导线产生磁场及通电螺线管产生磁场的电生磁理论进行分析。其中I-t图像做为一个更加形象,考查范围更全面的题型常常出现在我们的学习当中,本文即以电磁感应中的I-t图像问题入手,来分析感生电动势及动生电动势的特点,以及如何与磁场中电生磁部分的知识进行连接。
High-school physics electromagnetic induction as an important part, more for the introduction of electromagnetism in the university to do the knowledge, so in high school physics study, more bias in the basic theory of learning and analysis. The part of electromagnetic induction mainly focuses on two important basic knowledge points of the electromagnetic induction law of Ferrari and Lenz’s law. The main part of the study is the magnetoelectricity, which is based on the theory of electro-magnetic field. That is to say, the momentary electromotive force which induces the induced electromotive force by the conductor cutting the magnetic induction line and the induced electromotive force which produces the induction current by the change of the magnetic flux of the closed circuit are taken as the main body, and the magnetic field is generated by the electrified wire and the electromagnetism theory Analyze. Which It image as a more image, exam more comprehensive questions often appear in our study, this article that the electromagnetic imaging of It images to start with, to analyze the induced electromotive force and dynamic EMF characteristics, and how And magnetic field in the magnetic part of the knowledge to connect.