• 2022-06-03
    无限长载流直导线与一个无限长薄电流板构成闭合回路,电流板宽为[tex=0.571x0.786]HXNXn3AXpwdIpZt8+6oCEw==[/tex],导线与板在同一平面内,则导线与电流板间单位长度上的作用力大小为[img=183x332]17ab05a7c45892b.png[/img]
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