本题目来源于试卷: Physics Unit17: Electric Potential，类别为 通用国际物理
[单选题]
Two parallel plates, sb.y ph.uej,0h d k9ga v:dk-p.eparated by 0.5y m o.eh (p/km53t5bu owaz-b20 m, are connected to a 12-V battery. An electron released from rest at a locatio55/zth5my3.e bp w( bkua-oomn 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, how 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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