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对于《电磁感应》这一章,有一个非常重要的公式E=Blv,很多学生对这个公式理解不够,往往乱套公式,结果导致解题出错。下面从四个方面来谈一谈对这个公式的理解。1适用条件一个物理公式首先必须明确其适用的条件,公式E=Blv的适用条件是:(1)匀强磁场对于非匀强磁场公式E=Blv适用于
For the chapter “Electromagnetic induction”, there is a very important formula E = Blv, many students do not understand this formula enough, often indiscriminately set formulas, resulting in problematic solutions. Let’s talk about understanding this formula from four aspects. 1 Applicable conditions A physical formula must first determine its applicable conditions. The applicable conditions for formula E=Blv are: (1) Uniform magnetic field applies to non-uniform magnetic field formula E=Blv