本题目来源于试卷: Physics Unit18: Electric Currents，类别为 通用国际物理
[单选题]
A heavy bus bar is 20 c: z; 1j,s7)rd-wftdp+i j vrzzm long and oflw0up8 ki1bapzb 7+f)13c/i/zbfxtm rectangular cross-section, 1.0 cm x 2.0 cm. What is the volcf7ix/zz iab0wb / 18 kppufm+)31tlbtage drop along its length when it carries 4000 A? (The resistivity of copper is $1.68 \times 10^{-8} \Omega \cdot m$)
A. $0.67 \; V$
B. $0.34 \; V$
C. $0.067 \; V$
D. $0.034 \; V$
参考答案: C
本题详细解析:
暂无
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