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 ammeter reading is initia cbjf rc 473w5slly I. T 91 pxwf(lc,3jq zlmj 9he switch in the circ lqjp mz1 x(j,9l f3cw9uit then is 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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