电磁感应

• 作 者: 吴俊
• 出 处: 试题与研究
• 发表日期: 2016年31期
• 关键词: 金属棒 高考命题 安培力 楞次 线框 切割磁感线 匀强磁场 永磁体 磁场能 动摩擦因数

【考情报告】【考向指南】电磁感应是历年高考考查的重点内容之一,近几年新课标高考中都有出现,对这部分内容的考查非常灵活,选择、计算等题型均可.高考命题的热点有:(1)取材教材升华改造,以考查学生的理解能力.如直接考查楞次定律、涡流、经典实验及发现其中蕴含的思想方法等;

[Test report] [test guide] EM induction is one of the key elements of the college entrance examination examination over the years, in recent years, there have appeared in the new curriculum entrance exam, the examination of this part of the content is very flexible, choice, calculation and other questions were College entrance examination proposition hot spots are: (1) drawn materials sublimation transformation to examine students’ ability to understand, such as direct examination of Lenz’s law, eddy current, classic experiments and found that contains the ideas and methods;