• 2022-06-08
    [img=678x290]17969e2a133f8ef.png[/img]载流导线形状如图所示(图中直线部分导线延伸到无穷远),求点[tex=0.786x1.0]YEkxBRWVe8SyiK/VG6WTCQ==[/tex]的磁感强度[tex=0.786x1.0]ri6gmnf1+J9dGqG5/1sV6A==[/tex]