金属电阻率及其温度系数
<p><CENTER><TABLE borderColor=#202380 height=724 cellSpacing=1 cellPadding=7 width="84%" align=center border=1><TBODY><TR><TD vAlign=center align=middle width="8%" bgColor=#c0c0c0 height=25><STRONG>物质</STRONG></TD><TD vAlign=center align=middle width="14%" bgColor=#c0c0c0 height=25><STRONG>温度t/℃</STRONG></TD><TD vAlign=center align=middle width="27%" bgColor=#c0c0c0 height=25><STRONG>电阻率</STRONG></TD><TD vAlign=center align=middle width="30%" bgColor=#c0c0c0 height=25><STRONG>电阻温度系数a<SUB>R</SUB>/℃<SUP>-1</SUP></STRONG></TD></TR><TR><TD vAlign=top align=middle width="8%" height=16>银</TD><TD vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>1.586</TD><TD vAlign=top align=middle width="30%" height=16>0.2023(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铜</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>1.678</TD><TD vAlign=top align=middle width="30%" height=16>0.20233(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>金</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>2.40</TD><TD vAlign=top align=middle width="30%" height=16>0.20234(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铝</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>2.2023</TD><TD vAlign=top align=middle width="30%" height=16>0.20239(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>钙</TD><TD class=9p vAlign=top align=middle width="14%" height=16>0</TD><TD vAlign=top align=middle width="27%" height=16>3.91</TD><TD vAlign=top align=middle width="30%" height=16>0.20236(0℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铍</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>4.0</TD><TD vAlign=top align=middle width="30%" height=16>0.025(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>镁</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>4.45</TD><TD vAlign=top align=middle width="30%" height=16>0.2023(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>钼</TD><TD class=9p vAlign=top align=middle width="14%" height=16>0</TD><TD vAlign=top align=middle width="27%" height=16>5.2</TD><TD vAlign=top align=middle width="30%" height=16></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铱</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>5.3</TD><TD vAlign=top align=middle width="30%" height=16>0.202325(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>钨</TD><TD class=9p vAlign=top align=middle width="14%" height=16>27</TD><TD vAlign=top align=middle width="27%" height=16>5.65</TD><TD vAlign=top align=middle width="30%" height=16></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>锌</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>5.196</TD><TD vAlign=top align=middle width="30%" height=16>0.20239(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>钴</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>6.64</TD><TD vAlign=top align=middle width="30%" height=16>0.20234(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>镍</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>6.84</TD><TD vAlign=top align=middle width="30%" height=16>0.2023(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>镉</TD><TD class=9p vAlign=top align=middle width="14%" height=16>0</TD><TD vAlign=top align=middle width="27%" height=16>6.83</TD><TD vAlign=top align=middle width="30%" height=16>0.2023(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=-12>铟</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=-12>8.37</TD><TD vAlign=top align=middle width="30%" height=-12></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=15>铁</TD><TD class=9p vAlign=top align=middle width="14%" height=-12>20</TD><TD vAlign=top align=middle width="27%" height=15>9.71</TD><TD vAlign=top align=middle width="30%" height=15>0.20231(20℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铂</TD><TD class=9p vAlign=top align=middle width="14%" height=16>20</TD><TD vAlign=top align=middle width="27%" height=16>10.6</TD><TD vAlign=top align=middle width="30%" height=16>0.20234(0℃~60℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>锡</TD><TD class=9p vAlign=top align=middle width="14%" height=16>0</TD><TD vAlign=top align=middle width="27%" height=16>11.0</TD><TD vAlign=top align=middle width="30%" height=16>0.2023(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=17>铷</TD><TD class=9p vAlign=top align=middle width="14%" height=17>20</TD><TD vAlign=top align=middle width="27%" height=17>12.5</TD><TD vAlign=top align=middle width="30%" height=17></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=16>铬</TD><TD class=9p vAlign=top align=middle width="14%" height=16>0</TD><TD vAlign=top align=middle width="27%" height=16>12.9</TD><TD vAlign=top align=middle width="30%" height=16>0.003(0℃~100℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=9>镓</TD><TD class=9p vAlign=top align=middle width="14%" height=9>20</TD><TD vAlign=top align=middle width="27%" height=9>17.4</TD><TD vAlign=top align=middle width="30%" height=9></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=0>铊</TD><TD class=9p vAlign=top align=middle width="14%" height=0>0</TD><TD vAlign=top align=middle width="27%" height=0>18.0</TD><TD vAlign=top align=middle width="30%" height=0></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=-2>铯</TD><TD class=9p vAlign=top align=middle width="14%" height=-2>20</TD><TD vAlign=top align=middle width="27%" height=-2>20</TD><TD vAlign=top align=middle width="30%" height=-2></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=0>铅</TD><TD class=9p vAlign=top align=middle width="14%" height=0>20</TD><TD vAlign=top align=middle width="27%" height=0>20.684</TD><TD vAlign=top align=middle width="30%" height=0>(0.2023620℃~40℃)</TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=0>锑</TD><TD class=9p vAlign=top align=middle width="14%" height=0>0</TD><TD vAlign=top align=middle width="27%" height=0>39.0</TD><TD vAlign=top align=middle width="30%" height=0></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=10>钛</TD><TD class=9p vAlign=top align=middle width="14%" height=10>20</TD><TD vAlign=top align=middle width="27%" height=10>42.0</TD><TD vAlign=top align=middle width="30%" height=10></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=-6>汞</TD><TD class=9p vAlign=top align=middle width="14%" height=-6>50</TD><TD vAlign=top align=middle width="27%" height=-6>98.4</TD><TD vAlign=top align=middle width="30%" height=-6></TD></TR><TR><TD class=9p vAlign=top align=middle width="8%" height=4>锰</TD><TD class=9p vAlign=top align=middle width="14%" height=4>23~100</TD><TD vAlign=top align=middle width="27%" height=4>185.0</TD><TD vAlign=top align=middle width="30%" height=4></TD></TR></TBODY></TABLE></CENTER></p>
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