Combine Problems (id: ace566392)

本题目来源于试卷: Combine Problems，类别为 美国物理杯赛(Physics Bowl)

[单选题]
03.35: A circuit is connected as shown. All lightbulbs are identgr9 s-(in7o8b6at /n ru)kfribnt3. d ical. When the 9z o(zl7,f)wvz ec2pn switch in the circuit is closed illuminating bulb #4, which other b l)nzcz7w (z2f, vp9oeulb(s) also become brighter?

A. Bulb #1 only
B. Bulb #2 only
C. Bulbs #2 and #3 only
D. Bulbs #1, #2, and #3
E. None of the bulbs.


参考答案:  A


本题详细解析: 暂无

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