• 2021-04-14
    中国大学MOOC: 如图所示,将一均匀分布着电流的无限大载流平面放入均匀磁场中,电流方向与该磁场垂直。现已知载流平面两侧的磁感应强度大小分别为http://edu-image.nosdn.127.net/_PhotoUploadUtils_746f3891-a3b2-4661-9f83-3f2968611f49.png和http://edu-image.nosdn.127.net/_PhotoUploadUtils_3b881e6b-9afe-42b3-8d23-1750bdcce082.png,则该载流平面上的电流密度http://edu-image.nosdn.127.net/_PhotoUploadUtils_4bfb4765-c735-433c-bb9c-f24f015f2524.png为[ ]。http://edu-image.nosdn.127.net/2B41897924B757CB675DEEE796153477.png?imageView&thumbnail=890x0&quality=100
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