50瓦一天多少度电
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50瓦一天多少度电
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Web即:1千瓦时=3.6×10^6焦. 1kW‧h=1kW×h=1000W×h=1000W×3600s=3600000J (J是功的基本单位焦耳的符号). 对于日常来说,1千瓦时即1度。. 而 电功率 是用来表示消耗 电能 … Web简单问题复杂化了,看一下50周的交流电波形图,一秒内有100个过零点就有100次不亮。. 只不过白炽灯是靠热发光的过零时有堕性还有余光,频闪不明显,其余是冷光源的没电就没光,频闪很明显。. 不闪其实谈不上高档,其实就是直流或高频做电源。. 对于当今 ...
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