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 t qy kv9hfn6*h.d) lxpl8- 3dhlk:6qi ;;il,dw sm+ jfx7f p9ykwice the length of the other. How do the resistances of these two +p;;xikqlj9,6fyi7 w m sfk :dwires 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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