1. Dec 15, 2008

### feras

1. The problem statement, all variables and given/known data

The three side of an equilateral triangle have uniform linear charge densities 1MC/m , 2MC/m , and 3MC/m . Find the fild at the center of the triangle if each side is 50 cm long

http://www.feras1.com/1111.jpg [Broken]

2. Relevant equations

http://www.feras1.com/2222.jpg [Broken]

3. The attempt at a solution

i dont

Last edited by a moderator: May 3, 2017
2. Dec 15, 2008

### Defennder

You need to fill up this section properly. The equations you provided aren't particularly useful because the first one refers to an infinite line of charge, the 2nd one is for an infinite plane of charge. You have to integrate over the length of one of those lines of charge. Then you can use the result for the other two lines of charge to get the answer. Now, how would you set up such an integration?

3. Dec 18, 2008

### feras

Thank you very much attention to
I really do not need you, but I live in Palestine and the Gaza electricity cut off most of the time I came to you Valmalk
But Halit question to light the candle and thank God