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 of the ota5mfz3jjsn(0jh .df9 her. How do :c5nkw,i +s jothe resistivities of these two wir:c kjn,ws5i+o es compare?
A. Both wires have the same resistivity.
B. The longer wire has twice the resistivity of the shorter wire.
C. The longer wire has four times the resistivity 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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