本题目来源于试卷: Physics Unit17: Electric Potential，类别为 国际高中通用物理
[单选题]
Two parallel plates, separated by 0.20 mzvzl at0elgg u2(o 2/ieoyv9p 2c+w;:, yctw8 u0aia)2are connected to a 12-V battery. An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, ho c)2y0 awuat8iw much kinetic energy does the electron gain?
A. $2.4 \times 10^{-19} \; J$
B. $4.8 \times 10^{-19} \; J$
C. $7.2 \times 10^{-19} \; J$
D. $9.6 \times 10^{-19} \; J$
参考答案: B
本题详细解析:
暂无
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