【摘要】 自感是电磁感应现象中的重要概念,关于自感系数的定义可归纳为静态法、动态法、磁能法三种。文章在讨论分析载流长直导线、载流螺线管全空间磁场分布的基础上,利用叠加原理,求解特种螺线管的空间磁场分布;利用磁能法,解析计算长直特种螺线管单位长度的自感系数。更多还原

【Abstract】 The self-induced coefficient is an important concept in the electromagnetic induction phenomenon.There are three definitions for it: static definition,dynamic definition and energy definition.In this paper,based on discussing and analyzing the magnetic field distribution of current-carrying conductor and current-carrier solenoid,the magnetic field,produced by the special solenoid in the space,is calculated by using superposition principle of the magnetic field,and the self-induced coefficient per unit length of the special solenoid is calculated by energy definition.更多还原