• 2021-04-14
    如图,电流源单独作用时,电流I=-0.2A;电压源单独作用时,电流I=0.4A,则电流I=()A。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/d905439e9c354acba530bb3d60c1f617.png