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]
The resistance of a wa 2:*d) +o3lrftc qxerire isbl*) 1n m/q ys./oya(ci co4bo
A. proportional to its length and its cross-sectional area.
B. proportional to its length and inversely proportional to its cross-sectional area.
C. inversely proportional to its length and proportional to its cross-sectional area.
D. inversely proportional to its length and its cross-sectional area.
参考答案: B
本题详细解析:
暂无
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