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 ha9*kfe -ujb7s msx-4oy29bp uktfzv +fi+- ij4 (mnhty: a resistance 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
本题详细解析:
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