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]
15.39: For the circuit uhq79 ejf0bh0pa)6 y)z;r dqgshown, the four lightbulbs p7en(n,gpu :b have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in th ,p (u:pg 7ebnne circuit is closed, which one of the following choices correctly describes what happens to the magnitude of the current at the point labeled P and to the magnitude of the potential difference from Wto X?
 
A.
B.
C.
D.
E.
参考答案: E
本题详细解析:
暂无
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