How could a charged cylinder have linear charge density?
2015-07-16 6:21 am
In my book there is a question in which it is given that a cylinder has a surface charge density λ. How could a cylinder have linear charge density, it must have surface charge density?
回答 (1)
2015-07-16 6:54 am
OK we have a cylinder with a total of Q charge evenly spread over its surface. And the dimensions of the cylinder with V volume are V = AL. And now, ta da, I define rho = Q/A = QL/V as the area density. Or Rho =Q/L = QA/V as the linear density.
My point is that we define the density we need. But in truth those charges are spread along the length of the cylinder just as much as they are spread over the area.
My point is that we define the density we need. But in truth those charges are spread along the length of the cylinder just as much as they are spread over the area.
收錄日期: 2021-04-21 11:57:39
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