FD-based MATLAB code – iterative solution. Write a computer program in MATLAB for th...

FD-based MATLAB code – iterative solution. Write a computer program in MATLAB for the iterative finite-difference analysis of a coaxial cable of square cross section, Fig.2.4, based on Eq.(2.16). Assume that a = 1 cm, b = 3 cm, V_a = 1 V, and V_b = −1 V. Plot the results for the distribution of the potential and the electric field intensity in the space between the conductors, and the surface charge density on the surfaces of conductors, taking the grid spacing to be d = a/10 and the tolerance of the potential δ_V = 10⁻⁸ V. Compute the total charge per unit length of the inner and the outer conductor, taking d = a/N and N = 2, 3, 5, 7, 9, 10, 12, and 25, respectively. (ME2 _10.m on IR)

Reference: Equation(2.16), Fig.2.4