問題詳情
18. 如图所示。一电场的电场线分布关于y轴(沿竖直方向)对称,O、M、N是y轴上的三个点,且OM=MN,P点在y轴的右侧,MP⊥ON,则
(A) M点的电势比P点的电势高
(B) 将负电荷由O点移动到P点,电场力做正功
(C)M、N 两点间的电势差大于O、M两点间的电势差
(D)在O点静止释放一带正电粒子,该粒子将沿y轴做直线运动
(A) M点的电势比P点的电势高
(B) 将负电荷由O点移动到P点,电场力做正功
(C)M、N 两点间的电势差大于O、M两点间的电势差
(D)在O点静止释放一带正电粒子,该粒子将沿y轴做直线运动
參考答案
答案:A,D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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