• 2022-06-18
    径为R的无限长圆柱体均匀带电r,求圆柱体内、外任意点的场强(距离圆柱体中心轴为r)分别为[ ]
    A: [img=68x49]18035e9591f2e55.png[/img]
    B: [img=43x42]18035e959a4ea67.png[/img]
    C: [img=51x49]18035e95a1fdd33.png[/img]
    D: [img=68x49]18035e95aa90230.png[/img]
  • 举一反三