本题目来源于试卷: Electrostatic Force and Electric Field，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.15 In a circuit, the flou84 +ri rbq xi,keokh.+vn* 9fw of electrons in a horizon yjhhkun7ghx)7o3) 0ne -ncx+ tal wire produces a constant current of 3.20 A for a time of 3.0 hour. Which one of the following choicesg7ynhj7h+ nc3))onux -h 0xek best represents the number of electrons that pass through a vertical cross-section of the wire during this time?
A. $9.60$
B. $6.00× 10^{19}$
C. $7.20× 10^{22}$
D. $2.16× 10^{23}$
E. $6.02× 10^{23}$
参考答案: D
本题详细解析:
暂无
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