Electricity and Circuits: Complex Circuits (id: 2af8215f2)

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

[单选题]
04.39: The circuit shown has an ideal ammeter with zero resistancefhffkb7-w2slbu69 r,jg0qc2 ar* )tc 3lhd/6tydy*f ynd four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereb ldt 3dc/htyr6*y)y*fy permanently breaking the electrical circuit at that point. Which statement is true of the circuit after removing the bulb?

A. The voltage from B → C increases.
B. The power supplied by the battery increases
C. The voltage across R1 increases.
D. The ammeter reading is unchanged.
E. The bulb R2 maintains the same brightness.


参考答案:  A


本题详细解析: 暂无

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