Few electrostatic and electrodynamic problems have simple solutions analytically. In most of these problems using some special technique to solve them. Among the known techniques, the number are the most used and those with greater advantages, for many complex problems can be solved with good accuracy and low cost. This work is the development of computer programs in MatLab ® based numerical technique Method of Moments (Method of Moments – MoM) for analysis of electrostatic and electrodynamic problem. First is the method used for analysis of electromagnetic coupling between a linear thread on a conducting plane of finite dimensions, in order to calculate the distribution of load capacitance, the distribution of electric potential and the field lines at points near the structure. After the method is used for analysis of a cylindrical gold nanoantenna, in order to calculate the current distribution, the electric field near and the resonance frequency principal, taking into account the approach of the surface impedance of cylindrical plasmonic guides available in the literature. For each case, we perfomed a comparative analysis between the results obtained with the numerical solutions and analytical results in the literature. In order to contribute to the development of human resources specialist in numerical solution of electromagnetic problems in electrical engineering.
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