电磁感应当中最为重要且最为难的是电磁感应规律的综合应用,尤其是滑轨类问题、线圈穿越有界匀强磁场、电磁感应的能量等综合问题,以及结合高一时学过的力学和运动学知识,能很好地考察考生的综合能力,备受高考命题专家的青睐.同时此类问题的考试要求也在考纲中定位2级,由此可见它在高中物理中的重要性.此类考题的出现往往会是下列几类知识点的结合.1电磁感应中的电路问题1.1电路分析切割磁感线运动的导体或磁通量发生变化的线圈都相当 The most important and most difficult of electromagnetic induction is the comprehensive application of electromagnetic induction law, especially the problems of slide rail, the uniform problem that the coil passes through the bounded uniform magnetic field and the energy of electromagnetic induction, and the combination of mechanics and movement Learn knowledge, can well examine the comprehensive ability of candidates, highly subject experts in college entrance examination favored.At the same time, the examination requirements for such issues are also located in the syllabus level 2, we can see its importance in high school physics. Test questions will often appear as the combination of the following types of knowledge points.1 The circuit problems in electromagnetic induction 1.1 Circuit Analysis The conductor or magnetic flux changes the coil cutting magnetic flux lines are quite