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来自维基百科,自由的百科全书
西门子,简称为西门(英语:Siemens),符号为S,是物理电路学及国际单位制中,电阻、电纳和导纳,三种导抗的单位。较早期的文献则使用姆欧℧为单位,发音为mho[1][2]。
1西门子为1安培之恒定电流,通过一两端电势差为1伏特之导线时,该段导线两端间之电导。[5]
单位可表示为:
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