何谓动态类电学计算题呢?就是用电器的工作状态有变化,体现在条件的变化,电路的变化或二者均变化的一类题目。根据公式应用的三原则(同物性、同时性、统一性)可知,此类题目最重要的是在公式应用时特别注意同时性原则,所以解题的基本方法就是转化法,即把动态类计算题依相应的状态对应的转化为定态状态而解题。具体有下面几种类型及对应的方法。第一类型是由电路变化形成的动态电路计算。一种情况是由开关引起的动态电路,二种情况是由滑动变阻器引 What is the dynamic class of electrical calculation problem? Is the use of electrical work state has changed, reflected in changes in conditions, changes in the circuit or both are subject to change. According to the three principles (same property, simultaneity and unity) applied in the formula, it is known that the most important thing about such topics is paying particular attention to the principle of simultaneity when formulating the application. Therefore, the basic solution to the problem is the transformation method, that is, The questions corresponding to the corresponding state into the steady state and solve the problem. There are several specific types and corresponding methods. The first type is calculated by the dynamic circuit formed by the circuit changes. One case is a dynamic circuit caused by a switch, in both cases by a sliding rheostat