Electricity and Circuits: Resistor (id: 5d75a2276)

本题目来源于试卷: Electricity and Circuits: Resistor，类别为 美国物理杯赛(Physics Bowl)

[单选题]
99.31: Wire Y is made of the same mmyz3;ec 5s -u*lq9fheqz h 8wbv33)cenwcd+0 aterial but has twice the diametes8hng *;y :sbj;l ,(igaj g,y;gs9ruyr and half the length of wire X. b jy8ag;r(sy, ; gh;,gss *:9yngilujIf wire X has a resistance of R then wire Y would have a resistance of

A. $R/8$
B. $R/2$
C. $R$
D. $2R$
E. $8R$


参考答案:  A


本题详细解析: 暂无

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