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美国2021年物理杯赛真题 PHYSICS BOWL 2021 (id: b4944c6ff)

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admin 发表于 2024-2-6 07:22:00 | 显示全部楼层 |阅读模式
本题目来源于试卷: 美国2021年物理杯赛真题 PHYSICS BOWL 2021,类别为 美国物理杯赛(Physics Bowl)

[单选题]
You are given three identical resistors, each of resistance R. Each resistor can sustain a maximumpower of P. Two of the resistors are connected in series, and a third is connected in parallel withthese two. What is the maximum power this network can sustain?

A. $\frac{2p}{3}$
B. $\frac{3p}{2}$
C. 2p
D. 3p
E. 6p


参考答案:  B


本题详细解析:
Final combination of resistors offers 2/3 of the resistance of each individual resistor and 1.5 times more current can move through this combined resistor circuit. 

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