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]
16.07: Three cylindrical i mz9xf,*xmjbb9v s 4;resistors are made of the same material.k+(;cer 1q(cxjt3vyqgv s 4z 3 The length ande ;cjx(3v vq1 4+krysq (gzc3t radius of each resistor is:
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?
A. $R1 = R2 < R3$
B. $R2 < R1 < R3$
C. $R3 < R2 < R1$
D. $R1 < R2 = R3$
E. $R1 =R3 < R2$
参考答案: E
本题详细解析:
暂无
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