- #1

grandpa2390

- 474

- 14

## Homework Statement

Find the Electric field a distance z above one end of a straight line segment of length L that carries a uniform line charge λ

## Homework Equations

Complicated formula due to lack of font for the notation used by the author of the book. so I wrote it out. I did my best to differentiate between the script r and pi.

just in case I did a terrible job, only the first "r" is pi, the rest are script r's

## The Attempt at a Solution

My professor says during the lecture while doing this problem that the λ is not dependent on r so is a constant and can be pulled out of the integral, but then it also just disappears from the problem completely.

Why?