所谓分析法,就是从已知条件入手,对研究对象的状态及变化(即电路结构的变化)作出准确的判断,再根据给定的物理量,找出相应的公式或物理定律将其联系起来,最后推导出所求物理量。运用分析法解题的一般步骤为:(1)看图或作图,确定电路的连接方式。(2)根据已知物理量选择相应的物理公式或原理。(3) The so-called analytical method is to start from the known conditions, the state of the object of study and changes (that is, changes in circuit structure) to make accurate judgments, and then according to a given physical quantity to find the corresponding formula or physical laws to be linked, The final deduced physical quantity sought. The use of analytical methods to solve the general steps are: (1) look at the map or mapping to determine the circuit connection. (2) According to the known physical quantities to choose the appropriate physical formula or principle. (3)