作者coko0710 (coko0710)
看板Physics
标题[题目] electric field
时间Wed Apr 24 15:24:09 2013
An infinitely long conducting cylinder of radius 12 cm has a linear
charge density of 3 nC/m.What is the field strength 10 cm from the surface?
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1F：嘘 suyushan:你觉得你这样会有人想帮你解嘛? 04/25 00:47
2F：推 jass970991:不难喔 自己解解看 04/25 01:03
3F：嘘 profyang:作业直接打上来? 04/25 02:14
4F：→ BLUEBL00D:我帮你解 答案是3.1415967 04/25 03:11