本题目来源于试卷: Physics Unit18: Electric Currents，类别为 国际高中通用物理
[单选题]
What is the resistance of 1.0 m copper -v;y0 p o1dgiqwire06(nvx:uun* ed) 5o 5ha+1vlgl7jq5u umy p ln of diameter 0.40 inch? (The resistivity of copper is1 yqdlx) n 5:a5(n+uu 5*jon6uvump lvh0lge7 $1.68 \times 10^{-8} \; \Omega \cdot m$.)
A. $0.00012 \; \Omega$
B. $0.00021 \; \Omega$
C. $0.0012 \; \Omega$
D. $0.0021 \; \Omega$
参考答案: B
本题详细解析:
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