A cylindrical capacitor is made of two concentric conducting cylinders. The inner cylinder has radius R1 = 19 cm and carries a uniform charge per unit length of λ = 30 μC m. The outer cylinder has radius R2 = 45 cm and carries an equal but opposite charge distribution as the inner cylinder > 14% Part (a) Use Gauss' Law to write an equation for the electric field at a distance R1 < r < R2 from the center of the cylinders. Write your answer in terms of, r, and eo Grade Summa ry 0% 100% Potential Submissions Attempts remaining:

Complete Question

The complete question is shown on the first and second uploaded image  

The equation of the electric filed is  

The potential difference is

Explanation:

Gauss Law states the net  electric flux that is passing through an enclosed area would have a direct proportionality with the combination of the electric charge enclosed in that area

    Mathematically,

   The l was eliminated from the equation because R1 < r < R2

Mathematically the potential difference is given as

Substituting

the answer would be   dignified - apex

unlike poles attract