本题目来源于试卷: Physics Unit18: Electric Currents,类别为 通用国际物理
[单选题]
A carbon resistor has a resist3nzuqa0i-d s ,vk)y:e+ b du65aqb;tlance8l; 2)ssad;g xlw2 jiw of $18 \Omega$ at a temperature of $20 ^{\circ}C$. What is its resistance at a temperature of $120 ^{\circ}C$? (The temperature coefficient of resistivity for carbon is $-5.0 \times 10^{-4} /^{\circ}C$.)
A. $18 \; \Omega$
B. $17 \; \Omega$
C. $16 \; \Omega$
D. $15 \; \Omega$
参考答案: B
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