电路故障问题在初中物理学习中既是重点,又是难点。电路故障的种类很多,本文对初中物理中常见的由于断路或短路所造成的故障进行详细分析。一、串联电路的故障现象分为1.断路;2.短路。二、电路故障引发的事故1.电路断路引发停电事故;2.电路短路引发火灾事故三、串联电路发生局部故障时电流、电压的特点1.断路:所有用电器不工作;电流表无示数;只有跨接在断开 Circuit problems in junior high school physics learning is not only the focus, but also difficult. There are many types of circuit faults. This paper analyzes the common faults in middle school physics due to open circuit or short circuit. First, the breakdown of the series circuit is divided into 1. Open circuit; 2. Short circuit. Second, the accident caused by circuit failure 1. Circuit break caused by power outage; 2. Circuit short-circuit triggering a fire accident 3. Series circuit occurs when the local fault current, voltage characteristics 1. Open circuit: all appliances do not work; ammeter no indication; Only jumpers are disconnected