# Solve Laplace equation with boundary conditions

1. Oct 26, 2008

### tan90

1. The problem statement, all variables and given/known data
Calculate potential function and the electric field for the region between two concentric cylinders, where V ( inner cylinder) = 0 at r = 0.015 m and V(outer cylinder) = 100 for r = 0.025

2. Relevant equations
$$\Delta$$ (square ) V = 0

3. The attempt at a solution
so, V depends only on s, and we will just end up having two unknowns and we will need two boundary conditions that we already have.
am i right?

2. Oct 26, 2008

### gabbagabbahey

Yes, you have two unknowns and two boundary conditions...what do you get for V?

3. Oct 26, 2008

### tan90

i haven't actually solved it yet, but i am pretty sure that i can figure it out. thanks.