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]
Consider two copper wireo *8 gw-i1bruhtit(njw-;l,l s. One has twice the length of6vn-l x 6uf3yf the other. How do the resistances of these two w6yfx uf- 6nvl3ires compare?
A. Both wires have the same resistance.
B. The longer wire has half the resistance of the shorter wire.
C. The longer wire has twice the resistance of the shorter wire.
D. none of the given answers
参考答案: C
本题详细解析:
暂无
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