- #1
phil ess
- 70
- 0
Homework Statement
Consider a uniformly charged thin-walled right circular cylindrical shell having total charge Q, radius R, and height h. Determine the electric field at a point a distance d from the right side of the cylinder as shown in the figure below.
Homework Equations
E = kQ/r2
The Attempt at a Solution
Ok so I started by finding the electric field at a distance d from a ring of uniform charge:
E = [tex]\stackrel{kdQ}{\sqrt{(d\stackrel{2}{}+R\stackrel{2}{})\stackrel{3}{}}}[/tex]
Now I want to treat this shell as a collection of infinitely thin rings, so I need to sum the electric field due to the rings and integrate right? This is where I am having trouble:
E = [tex]\stackrel{k(d+dx)Q}{\sqrt{((d+dx)\stackrel{2}{}+R\stackrel{2}{})\stackrel{3}{}}}[/tex]?
Then integrate from 0 to h? What about the charge Q? Should it be Q/h?
I am confused as to how I set this integral up. Any help is greatly appreciated! thanks!