A long coaxial cable consists of an innercylindrical conductor with radius a and an outer coaxial cylinder withinner radius b and outer radius c. The outer cylinder is mounted on insulatingsupports and has no net charge. The inner cylinder has a uniformpositive charge per unit length l. Calculate the electric field (a) at anypoint between the cylinders a distance r from the axis and (b) at anypoint outside the outer cylinder. (c) Graph the magnitude of the electricfield as a function of the distance r from the axis of the cable, fromr = 0 to r = 2c. (d) Find the charge per unit length on the inner surfaceand on the outer surface of the outer cylinder.

A long coaxial cable consists of an innercylindrical conductor with radius a and an outer coaxial cylinder withinner radius b and outer radius c. The outer cylinder is mounted on insulatingsupports and has no net charge. The inner cylinder has a uniformpositive charge per unit length l. Calculate the electric field (a) at anypoint between the cylinders a distance r from the axis and (b) at anypoint outside the outer cylinder. (c) Graph the magnitude of the electricfield as a function of the distance r from the axis of the cable, fromr = 0 to r = 2c. (d) Find the charge per unit length on the inner surfaceand on the outer surface of the outer cylinder.