关键词: 磁偶极子, 电磁场, 数值积分

Abstract: In recent years, computational physics has attracted more and more attention in college physics education. In this paper, we derive the algebraic form and the integral expression of electromagnetic field excited by magnetic dipole source in uniform medium. The solution is solved by introducing Hertz potential based on Maxwell equations. Cubic spline fitting method and Gauss-Legendre numerical integration method are used to solve this numerical integral problem, and its numerical results are verified with the algebraic form. It also provides students an electrodynamics calculation case including both physical background and numerical calculation method.

Key words: magnetic dipole, electromagnetic field, numerical integration