在初学电路时,电路图的识别是常见的问题。为此,介绍几种方法供同学们参考。1.定义法。就是直接根据串、并联电路的定义判断。若电路中各元件是逐个顺次连接起来的,此电路是串联电路;若电路中各元件是并列接在电路两点间,即各元件两侧导线都直接独立的与电源相连,或与电源相连的其他元件相连,此电路就是并联电路。 In the novice circuit, the identification of the circuit diagram is a common problem. To this end, introduce several methods for students to refer to. 1. Definition method. It is based on the definition of string and parallel circuits. If the components of the circuit are sequentially connected one by one, the circuit is a series circuit; if the components of the circuit are connected in parallel between the two points of the circuit, that is, the wires on both sides of each element are directly connected to the power source independently, or to the power source. Connected to other components connected, this circuit is a parallel circuit.