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在解决电路问题时,常见的一类题目是当电路中的某一电阻或用电器的阻值发生变化时,分析电路中的电流的变化或局部电路电压的变化、功率的变化,面对此类问题,许多同学往往会无从下手,或是在分析过程中缺东少西,考虑不周全,其实我们只要掌握解决这类问题的基本方法,遇到这类问题时便能迎刃而解,本文从此类问题的三种不同类型出发加以说明.一、树形结构分析法将分析思考过程以图的形式呈现出来,从而直观地展示各部分电路之间的关系,在解题过程中起到事半功倍的效果.
In solving the circuit problem, a common type of problem is when a circuit in a resistor or electrical resistance changes, the analysis of the circuit current changes or changes in the local circuit voltage, power changes in the face of this In fact, if we master the basic methods to solve such problems, we will be able to solve them easily when encountering such problems. This article from the point of view of such problems, The problem of three different types of starting to illustrate.First, the tree structure analysis method to analyze the thinking process in the form of a graph presented in order to visually show the relationship between the various parts of the circuit, the problem-solving process to play a multiplier effect .