本题目来源于试卷: Fields D.2 Electromagnetic Fields & Potential，类别为 IB物理学
[单选题]
An electron is releasedb6uh(ynsdg-uxo8v0 (+1 zg da from tl 37j(srccr9)cbkwk 1he negative plate of two oppositely charged parallel plates placed a fixed distance apart. The poten913 cs7k r(c cwrbkj)ltial difference between the two plates is V, and the electron reaches the positive plate with a speed v.
What would be the final speed of the electron if the distance between the plates remained the same, but the potential difference between them were doubled?
A. v$\sqrt{2}$
B. 2v
C. $\frac{v}{2}$
D. $v$
参考答案: A
本题详细解析:
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