Conduction to displacement current ratio, rural ground. Write a function condDispCur...

Conduction to displacement current ratio, rural ground. Write a function condDispCurrentRatio() in MATLAB that returns the ratio of the amplitudes of the conduction and displacement current densities in a given material. The input data to the function are the permittivity and conductivity of the material, and the vector (array) of frequencies. Then, with the use of this function, plot the conduction to displacement current ratio in a frequency range 10 kHz ≤ f ≤ 10 GHz for a sample of rural ground with ε_r = 14 and σ = 10⁻² S/m that is occupied by a time-varying electric field of intensity E(t) = E₀ cos ωt. Assume no changes in the material parameters as a function of frequency. (condDispCurrentRatio.m and ME6 12.m on IR)

HINT: From Eq.(6.13), we conclude that the amplitude ratio of current densities is given by

The graph is shown in Fig.6.10 (to present both the abscissa and the ordinate in log scale, MATLAB function loglog is used).