magnetic field from a straight wire

长直导线垂直面上磁场仿真，有可视化的图像，简单明了-Magnetic field perpendicular to the surface of a long straight wire simulation, there is a visual image, plain and simple

任意直导线周围的磁场分布，使用matlab编制-Arbitrary distribution of magnetic field around the wire straight

2.1 预习 点电荷电场分布 2.2 实验一 电偶极子电场分布仿真 2.3 实验二 特殊边界条件的电场分布 2.4 实验三 直导线的磁场分布 2.5 实验四 磁偶极子的磁场分布(2.1 preview point charge electric field distribution 2.2 experimental electric dipole electric field distribution simulation The distribution of electr