如图1所示,Q是带正电的点电荷,P1和P2为其电场中的两点．若E1、E2为P1、P2两点的电场强度的大小,φ1、φ2φ1

如图1所示,Q是带正电的点电荷,P1和P2为其电场中的两点．若E1、E2为P1、P2两点的电场强度的大小,φ1、φ2φ1
如图1所示,Q是带正电的点电荷,P1和P2为其电场中的两点．若E1、E2为P1、P2两点的电场强度的大小,φ1、φ2
φ1

如图1所示,Q是带正电的点电荷,P1和P2为其电场中的两点．若E1、E2为P1、P2两点的电场强度的大小,φ1、φ2φ1
因为Q是带正电的点电荷,所以电场方向应该是以Q点为中心向四周扩散,又因为电场强度是密大疏小,所以E1>E2,又因为电势是沿电场线方向逐渐降低,所以φ1>φ2.
你的答案好像是错了,你自己再看看吧,我这也是我自己想的,也不一定是对的.

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图呢？？

我怎么看着是反过来。。。

电势沿电场线方向降低。

题目错了吧

被采纳的答案是对的
Q是带正电的点电荷，电场线从Q出发到无穷远终止．顺着电场线电势降低
电场线方向由P1指向P2，顺着电场线电势降低