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 e;s5kjdy7fkhyym5 ,tj+ o1,uhv n(n / amm yp.zrtp2:7rrxed7 yk ,x) xa7hyg7 i)eter reading is initially I. The switch in the circuit then taix ky)7: prp )h ye7r2y.,z77 xdgxris 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:
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