论文部分内容阅读
一、问题的提出高中物理教学中,在进行点电荷产生的电场教学时都要分析两个等量同种电荷产生从电场,既要分析讲解其电场线分布情况,又要分析讲解等势面分布情况,一般都是利用叠加原理进行分析讲解的。其中的一些结论是:(1)在两点电荷连线上越靠近点电荷场强越大,两点电荷连线的中点处场强为零;(2)离两点电荷无穷远处场强也趋于零;(3)在两点电荷连
First, the problem raised High school physics teaching, the electric field generated by the point charge should be analyzed when the same two kinds of electric charge generated from the electric field, it is necessary to analyze the distribution of its electric field lines, but also to analyze and explain the equipotential Distribution, are generally used to explain the principle of overlay. Some of the conclusions are: (1) The closer the point charge field is, the stronger the field strength at the midpoint of the two-point charge connection is; (2) The field strength at infinity Also tends to zero; (3) even at two charge