Physical Sience and Technical Research

For the physical quantities of the charged system including electric field strength and potential are more difficult to visualise, this paper takes the point charge system as an example, the system tends to be complicated by the superposition of fields due to the increase in the number of point charges and the inhomogeneity of the distribution, and it is more and more difficult to construct the physical image of the system. Starting from the Poisson equation of the point charge system, the distribution of electric potential in space can be obtained, and by the relationship of the electric field is equal to the negative gradient of the electric potential, and then the electric field strength of the system. MAPLE-based computer simulation is introduced into the teaching of electromagnetism, which helps to visualise the complex and abstract physical formulas in an intuitive and graphic way, and stimulate students interest in learning as well as enhance their knowledge and understanding of physical laws.

MAPLE; Electrostatic field; Point charge; Visualisation