1问题的提出从现行教材的内容来看,楞次定律将学生知识范围内有关“场”的概念从“静态场”过渡到“动态场”——变化的磁场,从“静到动”是一个大的飞跃,所以学生理解起来要困难一些.而教学中涉及的物理量多,关系隐蔽复杂,产生感应电流的原磁场与感应电流的磁场两者都处于同一 PROBLEM PROBLEMS According to the content of current textbooks, Lenz’s law transforms the concept of “field” from “static field” to “dynamic field” - changing magnetic field from “static to dynamic” A big leap, so students understand it more difficult.And the physical quantities involved in the teaching, hidden covert relationship between the original magnetic field induced current and induced current magnetic field are in the same