本题目来源于试卷: Physics Unit18: Electric Currents，类别为 通用国际物理
[单选题]
Consider two copper wires. One has twice the length and t:s4bza9n58a jwf oeq0wice tsi3(9wr0ml10- xid 1. v( nwofzgwxwdyjy5) ihe cross-sectional area of the rnd oxi0xi1( w3yjy1-m 0f .di5lgwz wwv(9 s)other. How do the resistances of these two wires compare?
A. Both wires have the same resistance.
B. The longer wire has twice the resistance of the shorter wire.
C. The longer wire has four times the resistance of the shorter wire.
D. none of the given answers
参考答案: A
本题详细解析:
暂无
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