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]
07.33: For the circuit shown, the amme wbyb-* t)2g5 uft l-water readi wfo sve gzt6 v, /im/0j.n-hn:ng is initially I. The switch in the circuit then .h m-zstni, o6/0e/f :jvv nwgis closed. Consequently:

A. The ammeter reading decreases.
B. The potential difference between E and F increases.
C. The potential difference between E and F stays the same.
D. Bulb #3 lights up more brightly.
E. The power supplied by the battery decreases.
参考答案: C
本题详细解析:
暂无
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