[복사열전달] Capacitance and resistance of a coaxial cable

Consider a coaxial cable with the center conductor of radius a and the coaxial conductor of radius b for a cylinder length of l ≫ b, which is filled with a dielectric permittivity ϵ and conductivity σ. (a) Calculate the capacitance between the inner and outer conductors.

(b) Calculate the resistance between the center conductor and the coaxial conductor, using Ohm’s law J = σE (a) (b)...