本题目来源于试卷: Electricity and Circuits: Resistor,类别为 美国物理杯赛(Physics Bowl)
[单选题]
99.30: Given the simpl ;,vl8+nw myr xtc j3q2e elec . 3i,gkl moc8e *lchtl9k08lutrical circuit at the right. If the current in all three resistors i 9m3kc ke8 ,h0ou.lltgli c*8l s equal, which of the following statements must be true?

A. $X, Y, $and $Z$all have equal resistance
B. $X$ and$Y$ have equal resistance
C. $X$ and$Y$ added together have the same resistance as $Z$
D. $X$ and$Y$ each have more resistance than $Z$
E. none of the above must be true
参考答案: C
本题详细解析:
暂无
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