电功率.(功率)
来源:学生作业帮 编辑:作业帮 分类:物理作业 时间:2024/11/06 03:52:01
将一灯泡直接接到电源上。功率为100W.用长岛县将灯泡串联后接到同一电源上。功率为81W。则长导线上损失的功率是多少?
解题思路:
解题过程:
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最终答案:略
解题过程:
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最终答案:略