A charged satellite moves on a Kcplcrian orbit in the Earth's magnetic field (EMF). The principle moment of Lorentz forces M_A is determined on the basis of a quadrupole model of the geomagnetic potential in view of the EMF nonuniformity in the volume of the satellite. It is shown that in general case M_A contains a lot of components, which values may vary in a wide range. Because of this obstacle on the stage of construction of the charged satellite attitude motion mathematical model which is to be correct and also desirable to be simultaneously sufficiently simple and precise, one faces the necessity of solving two correlating problems: 1) to analyse and compare the values of all components of M_A, 2) to study the influence of various factors on the values of these components. In this article the method of solving these problems is developed with the use of visual schemes. The results of numerical computations for particular values of parameters are represented.