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一度电可供一只100瓦的灯泡照明几小时?

更新时间: 2020-12-08 00:00:00     

1、一度电可供一只100瓦的灯泡照明10小时,一度=1000瓦时,1000瓦时/100瓦=10(小时)。度,中国家庭电量常用单位,即千瓦时,符号为kW·h,功率为1000瓦的设备一小时的耗电量为1度电。

2、1焦=1瓦×秒,1千瓦时=1千瓦×1小时=1000瓦×1小时=1000瓦×3600秒=3600000焦,1千瓦时=3.6×10^6焦,1kW.h=1kW×h=1000W×h=1000W×3600s=3600000J。

关键词: 一度 灯泡 照明 小时

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