# Homework Help: Electric field outside conductor

1. Sep 21, 2016

### arpon

1. The problem statement, all variables and given/known data
A long metal pipe of square cross-section is grounded on three sides, while the fourth (which is insulated from the rest) is maintained at constant potential $V_0$. What is the electric field just outside the section opposite to $V_0$?

2. Relevant equations

3. The attempt at a solution
This problem can possibly be solved by solving the Laplace equation under the given boundary condition. But is there any intuitive solution to this?

2. Sep 22, 2016

### CalcNerd

You might want to post some type of drawing. However, I suspect you have a capacitance effect and that is probably your starting point.

3. Sep 22, 2016