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金属电阻率及其温度系数物质温度t/c电阻率Q.m电阻温度系数aR/C-1银201.5860.0038(20 C)铜201.6780.00393(20 C)金202.400.00324(20 C)铝202.65480.00429(20 C)钙03.910.00416(0C)被204.00.025(20 C)镁204.450.0165(20 C)铝05.2铱205.30.003925(0 C100C)钨275.65锌205.1960.00419(0C100C)钻206.640.00604(0 C100C)镣206.840.0069(0 C100C)镉06.830.0042(0 C100C)掴208.37铁209.710.00651(20 C)铂2010.60.00374(0C60C)锡011.00.0047(0C100C)铷2012.5铬012.90.003(0 C100C)镓2017.4铊018.0铯2020铅2020.684(0.0037620C40C)锑039.0钛2042.0汞5098.4猛23100185.0