大学物理小题取无穷远处为参考零电势点,半径为R的导体球带电后其电势产U,则球外离球心距离为r处的电场强度的大小为?RU/(r^2)

时间:2024-04-30 09:05:16 5A范文网 浏览: 平时作业 我要投稿

问题描述:

大学物理小题
取无穷远处为参考零电势点,半径为R的导体球带电后其电势产U,则球外离球心距离为r处的电场强度的大小为?
RU/(r^2)

最佳答案

设导体球所带电荷量为Q,由题意:
U=kQ/R.1
又由于,在r处的电场强度:
E=kQ/r^2.2
联立1,2得:
E=RU/r^2

来源:网络整理 免责声明:本文仅限学习分享,如产生版权问题,请联系我们及时删除。

相关文章:

---What can I do for you?---Well,I’m afraid the box04-30

12. The problem wasn’t_______hard. The little gir04-30

--- How many subjects are you good at?--- Three, _04-30

. Playing on a frozen sports field sounds like a l04-30

There’s ____ water on the playground, so we won’04-30

— Lovely weather, isn’t it?— Yes, a bit hot, __04-30

His success is by talent as by energy.A.not so much04-30

.Computers and mobile phones, playgh they are inde04-30

In ancient times, people rarely travelled long dis04-30

It is impossible.A.veryB.quiteC.ratherD.fairly04-30

热搜文章
最新文章