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    半径为[tex=0.786x1.0]AOSTmhvIsOwsdZlGoks7dg==[/tex]的均匀带电球内挖去半径为[tex=0.5x0.786]U5O66aolbR1y5vuKrQbXNA==[/tex]的小球。对图[tex=1.357x1.357]NnzoLS17pYrzsFi34EYpsA==[/tex]与[tex=1.214x1.357]1UXtoYxygKGhdbzkW8pekQ==[/tex]的两种挖法,能否用高斯定理和叠加原理求各点的场强?[img=446x248]17a047df41a5e76.png[/img]
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