如图所示为等量的正、负点电荷,A为两电荷的连线上的点,O为两电荷的连线上的中点,B为连线中垂线上的点。已知A、O两点间电势差UAO=4V
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/1cb08fb0-aea7-441a-bfd7-7f68c75e9d3c.png?resizew=153)
(1)使试探电荷先沿两电荷的连线由A移动到O,再沿中垂线移动到B,此过程中,试探电荷所受电场力的变化___________ (“一直增大”或“一直减小”或“先增大后减小”或“先减小后增大”);
(2)若试探电荷的电荷量q=+5×10-4C,则该试探电荷由A运动到B的过程中,电场力对试探电荷做的功WAB=__________ J。
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/1cb08fb0-aea7-441a-bfd7-7f68c75e9d3c.png?resizew=153)
(1)使试探电荷先沿两电荷的连线由A移动到O,再沿中垂线移动到B,此过程中,试探电荷所受电场力的变化
(2)若试探电荷的电荷量q=+5×10-4C,则该试探电荷由A运动到B的过程中,电场力对试探电荷做的功WAB=
更新时间:2022-09-03 12:20:05
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【推荐1】如图所示,匀强电场的电场线与
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