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Examples Using the Method of Moments

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This chapter begins with a discussion on a modeling program, which can be used to learn electrostatic concepts. It discusses limitations and inaccuracies of the modeling program, and the plans to improve it. One of the components of the program is that it must be able to take the input data information and convert it into the subrectangles (cells) as described by the data input. The chapter shows a high-resolution plot of charge distribution on a parallel plate capacitor. Various characteristics of a simple capacitor structure can be examined quite easily simply by changing numbers in the data file. Once the charge distribution in a structure is known, the voltage anywhere in space can be approximated by assuming that the charge in each cell is concentrated at the center of the cell.