A coaxial transmission line has inner and outer conductor radii a and b. Between conductor...

A coaxial transmission line has inner and outer conductor radii a and b. Between conductors (a<ρ0/ρ, where σ0 is a constant. The inner conductor is charged to potential V0, and the outer conductor is grounded. (a) Assuming dc radial current I per unit length in z, determine the radial current density field J in A/m2. (b) Determine the electric field intensity E in terms of I and other parameters, given or known. (c) By taking an appropriate line integral of E as found in part (b), find an expression that relates V0 to I. (d) Find an expression for the conductance of the line per unit length, G.