【考情综述】本模块主要包括电磁感应、交流电和传感器等内容,其中电磁感应为高考备考的重点、热点和难点.常以压轴题的形式出现在高考各卷中.分析往年高考真题,本模块命题频率较高的知识点包括:应用楞次定律和右手定则判断感应电流的方向,计算感应电动势,电磁感应与力学、与电路、与磁场相结合的综合性 【Summary】 test This module includes electromagnetic induction, AC and sensors, etc., of which electromagnetic induction for the college entrance examination for the preparation of the focus, hot and difficult, often in the form of the finale in the college entrance examination papers in the analysis of college entrance examination Zhenti, The higher frequency of the module proposition knowledge points include: the use of Lenz’s law and the right hand rule to determine the direction of the induced current, the calculation of induced electromotive force, electromagnetic induction and mechanics, and circuits, and the combination of the magnetic field