文档介绍：目录第一章直流电路..................................................................................................................................5§1—1电学的基本物理量.................................................................................................................5一、电量...........................................................................................................................................5二、电流...........................................................................................................................................5三、电压...........................................................................................................................................6四、电动势、电源...........................................................................................................................7五、电阻...........................................................................................................................................7六、电功、电功率...........................................................................................................................8七、电流的热效应.........................................................................................................................10§1—2电路....................................................................................................................................11一、电路的组成和作用.................................................................................................................11二、电路图.....................................................................................................................................11三、电路的三种状态.....................................................................................................................12§1—3欧姆定律...............................................................................................................................12一、一段电阻电路的欧姆定律................................................................................