关于求载流圆环的自场和自作用力模型的讨论  

Discussion on a Model of Finding the Self-magnetic Field and the Self-force of a Carrying Current Ring

作　　者：白旭芳[1] 李子军[1] 

机构地区：[1]内蒙古民族大学理工学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2001年第3期318-319,共2页Journal of Inner Mongolia Minzu University：Natural Sciences

摘　　要：指出载流圆线圈在自身所在处的磁感应强度和磁场的作用力都为无穷大 .其原因是错用了理想的物理模型的适用范围 .对一个实际的载流圆环 ,在远点范围 ,可抽象为一个磁矩m 确定的磁偶极子 ;在中距点范围 ,可抽象为一个载流圆线圈 ;在近点范围 。It is pointed out that the magnetic intensity and the magnetic force of a carrying current circular coil are the infinite in the self place,Its reason is wrongly using applicable range of a ideal physical model, A Practical carrying current ring can be thought as a magnetic dipole with the definite magnetic dipole moment to be m  in the range of far distance and can be thought as a carrying current circular coil in the range of medium distance and can be thought as a carrying current ring to be formed of conductor with definite measure in the range of short distance.

关 键 词：载流圆环 理想模型 适用范围 自场 自作用 磁感应强度 磁场 

分 类 号：O442[理学—电磁学]