Abstract: As an important physical model, the study of electric field distribution of line charge has great physical significance. In this paper, by using the symmetry of regular hexagon, formula of electric field intensity about charged finite length-straight line and superposition principle are used to solve the distribution of electric field intensity and potential on central axis and asymmetric axis of regular hexagon line charge. At the same time, in order to understand the distribution more directly and simply, MATLAB simulation software is used to draw the field distribution of the regular hexagon line charge, and the law of the electric field strength is obtained by analysis. On both the symmetric and asymmetric axes, the distribution of electric field direction is odd symmetric, and the intensity of electric field is mainly localized near the regular hexagonal line charge. On the symmetric axis, the strength is higher, but the range of intensity is smaller than that on the asymmetric axis. The distribution of electric potential is symmetric on both axes, with the highest potential near the line charge on asymmetric axis.

Key words: regular hexagon line charge, electric field strength, Matlab simulation, superposition principle