A coaxial cable is formed by a long, straight wire and a hollow conducting cylinder with axes that coincide. The wire has charge per unit length , and the hollow cylinder has net charge per unit length . Use Gauss’s law to answer these questions: What are the charges per unit length on
a. the inner surface and
b. the outer surface of the hollow cylinder?
c. What is the electric field a radial distance d from the axis of the coaxial cable?
