An infinitely long cylindrical conductor has radius r and uniform surface charge density σ.
1-)in terms of σ and r, what is the charge per unit length λ for the cylinder?
express your answer in terms of the given quantities and appropriate constants.
2-)in terms of σ, what is the magnitude of the electric field produced by the charged cylinder at a distance r> r from its axis?
express your answer in terms of the variables σ, r, r, and constant ε0.
3-)express the result of part b in terms of λ.
express your answer in terms of the variables λ, r, r, and constants ε0 and п.