轴截面为正方形的载流长直螺线管内的磁场

Magnetic Field Inside a Solenoid With Square Loops

应用磁感强度叠加原理,简洁地给出了轴截面为正方形的载流直螺线管轴线上的磁感强度的计算方法;讨论了在直螺线管的长度远远大于正方形的边长的极限条件下轴线上的磁场分布,结论是轴线上的磁场与轴截面为圆形的载流长直螺线管轴线上的磁场相同.

By virtue of the additional principle for magnetic field,magnetic field inside a solenoid with square loops is calculated in a concise way.It is noticed that if the length of the solenoid is much longer than the dimension of the square loop,the magnitude of magnetic field inside the solenoid is just the same as that inside a solenoid with circle loops.