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针对电磁感应现象中我们经常遇到功能关系问题,本文按两条主线并行的方式进行了阐述:一条主线是易错易混问题分类;另一条主线是电磁感应现象分类.并给出了该疑难教学问题的创新解决方案——用动能定理、转换研究对象等方法破解电磁感应功能关系问题.电磁感应现象中我们经常遇到功能关系问题,此类问题如果直接用能量转化观点去求解,可能出现以下问题:(1)分不清哪几种形式的能量在相互转化,见例1;(2)易出现遗漏或者重
In view of the electromagnetic induction phenomenon, we often encounter the problem of functional relationship, this article describes the two main lines in parallel: one main line is easy to misclassify the problem classification; the other main line is the electromagnetic induction phenomenon classification. Innovative solutions to the problem of teaching - the use of kinetic energy theorem, the transformation of research objects and other methods to solve the problem of electromagnetic induction function relationship.We often encounter the problem of electromagnetic compatibility, such problems can be solved directly if the energy conversion point of view, may arise The following questions: (1) can not distinguish between several forms of energy conversion in each other, see Example 1; (2) prone to omissions or heavy