词条	Electric resistivities
释义	Electric resistivities Table Electric resistivities (at room temperature) material resistivity (ohm-metre) silver 1.6 × 10−8 copper 1.7 × 10−8 aluminum 2.7 × 10−8 carbon (graphite) 1.4 × 10−5 germanium* 4.7 × 10−1 silicon* 2 × 103 carbon (diamond) 5 × 1012 polyethylene 1 × 1017 fused quartz \\>1 × 1019 *Values very sensitive to purity. See as table:
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