金属电阻率及其温度系数物质 温度 t/ 电阻率 m 电阻温度系数 aR/-1银 20 1.586 0.0038(20)铜 20 1.678 0.00393(20)金 20 2.40 0.00324(20)铝 20 2.6548 0.00429(20)钙 0 3.91 0.00416(0)铍 20 4.0 0.025(20)镁 20 4.45 0.0165(20)钼 0 5.2铱 20 5.3 0.003925(0100 )钨 27 5.65锌 20 5.196 0.00419(0100 )钴 20 6.64 0.00604(0100 )镍 20 6.84 0.0069(0100)镉 0 6.83 0.0042(0100)铟 20 8.37铁 20 9.71 0.00651(20)铂 20 10.6 0.00374(060)锡 0 11.0 0.0047(0100)铷 20 12.5铬 0 12.9 0.003(0100 )镓 20 17.4铊 0 18.0铯 20 20铅 20 20.684 (0.003762040 )锑 0 39.0钛 20 42.0汞 50 98.4锰 23100 185.0
