本题目来源于试卷: Combine Problems,类别为 美国物理杯赛(Physics Bowl)
[单选题]
07.33: For the circuit shown, the amme ykl250.zy aj w:na1 yxter reading is initiall z.lq+)nk2e o9gzb-umrs e a-k2+jv n9y I. The switch in the circuit then is closed. Con z-kbg 2n-qer29 nljz ku9o .mv+sa+e)sequently:

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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