I believe at the top of the conducting sheet is the charge density is +σ and at the bottom the sheet is -σ.
Sorry about the notation. I was trying to use region 2 to calculate the magnitude of the electric field vectors and use superposition. At region 2, the total electric field is 0. E1 is...
Homework Statement
http://img532.imageshack.us/img532/1460/problemjh.png
Homework Equations
Electric field from infinite plane:
E = \frac{\sigma }{2\varepsilon _{0}}
The Attempt at a Solution
I'm pretty sure that at region 2, the total electric field is 0 since all the charges on the...