如图将灯L1“6V 3W"和L2"6V 6W"串联(灯泡电阻不变),现要使其中一盏灯长时间正常发光,电源电压---- 总功率如图将灯L1“6V 3W"和L2"6V 6W"串联(灯泡电阻不变),现要使其中一盏灯长时间正常发光,电源
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 23:34:33
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