Homework Statement
We have long wire with constant charge density that is put inside a grounded metal housing with a shape of cylindrical section (a ≤ r ≤ b and 0 ≤ ϕ ≤ α). We need to find potential inside the box.
2. Homework Equations
Δf=-(μ/ε0)*∂^2(r), where μ is linear charge density...