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电磁感应中的图像问题已成为高考的重点、热点知识.该类问题综合性强,很好地考查了学生综合分析问题的能力.分析电磁感应现象中的图像问题,通过楞次定律判断出感应电动势(或电流)的方向,从而确定其正负,以及在坐标中的范围;通过法拉第电磁感应定律分析回路中的感应电动势或感应电流的大小及其变化规律;通过画等效电路、受力分析、运动过程的分析,确定物体运动的性质.2013年全国各地高考物理试题有关电磁感应图像,主
The problem of image in electromagnetic induction has become the focus of the college entrance examination, hot knowledge.This kind of problem is comprehensive and very well examined the ability of students to analyze the problem comprehensively.It analyzes the problem of the image in the electromagnetic induction phenomenon, Electromotive force (or current) direction, so as to determine the positive and negative, as well as in the coordinates of the range; by Faraday’s law of electromagnetic induction circuit induced electromotive force or induced current size and its variation; by drawing the equivalent circuit, the force Analysis, analysis of the movement process, to determine the nature of the object movement 2013 college entrance examination physics questions about electromagnetic induction images, the Lord