[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fLpwa8hHd-upQdbBPnVfwYogbUK4Sxqf0fdEzRMd8Bb8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-15 19:01:29",10400355,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7ce683e3d6d581cfe340f4e2aebd016f.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F59387dfbc2808b1c5c7a165e2514f45f.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3a1a5b37ddfcabf9932d06e65fa82df.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9a3b37266a4d00e26062bb0a4a4546ec.webp\">",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},21,"05cc272230f763aa814d04fc4b242c05","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb71f5ef0bc91dad807788d7bf753eb02.png","大学物理","20e95f8ab97a49c59aab9e2e1f4a0107","7.6测验","真空中,有一半径为R的不带电的导体球,在离球心的距离为a处(a&gt;R)有一电量为q的点电荷.以无穷远处电势为零,则导体球的电势等于",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],10400353,[25,26,27,28],"金属导体N带负电荷","金属导体N带正电荷","金属导体N保持电中性","金属导体N带电,但不能确定所带电荷的正负","带正电荷的物体M,靠近不带电的金属导体N的左端,N的左端感生出负电荷,右端感生出正电荷.若将金属导体N的左端接地,则","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],10400354,[36,37,38,39],"表面上电荷密度较大处电势较高","表面曲率较大处电势较高","导体内部的电势比导体表面的电势高","导体内任一点与其表面上任一点的电势差等于零","孤立带电导体静电平衡时",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],10400356,[48,49,50,51],"球壳内、外场强分布均无变化","球壳内场强分布改变,球壳外不变","球壳外场强分布改变,球壳内不变","球壳内、外场强分布均改变","在一不带电荷的导体球壳的球心处放一点电荷,并测量球壳内外的场强分布.如果将此点电荷从球心移到球壳内其它位置,重新测量球壳内外的场强分布,则将发现",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],10400357,[57,58,59,60],"电荷全部集中在两平行金属板的内侧表面","电荷在每一个金属板上均匀分布","电荷分布在每一块金属板的两表面","无法确定电荷怎样分布","两平行大金属板,面电荷密度分别为+&sigma;和-&sigma;,以下说法正确是",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],10400358,[66,67,68,69],"F\u002F q0比P点处场强的数值大","F\u002F q0比P点处场强的数值小","F\u002F q0与P点处场强的数值相等","F\u002F q0与P点处场强的数值哪个大无法确定","有一带正电荷的大导体,欲测其附近P点处的场强,将一电荷量为q0 (q0&gt;0 )的点电荷放在P点,测得它所受的电场力为F.若电荷量q0不是足够小,则",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],10400359,[75,76,77,78],"V1","V2","V1 + V2","(V1 + V2)\u002F2","两个同心薄金属球壳,半径分别为R1和R2 (R2 &gt; R1),若分别带上电荷q1和q2,以无穷远处为电势零点,则两者的电势分别为V1和V2.现用导线将两球壳相连接,则它们的电势等于",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],10400360,[84,85,86,87],"内表面均匀,外表面也均匀","内表面不均匀,外表面均匀","内表面均匀,外表面不均匀","内表面不均匀,外表面也不均匀","在一个孤立的导体球壳内,若在偏离球中心处放一个点电荷,则在球壳内、外表面上将出现感应电荷,其分布将是",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],10400361,[93,94,95,96],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feb26f308e31679d60eef19aac52779ef.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2ee020e521491ba845b715ae8f08f906.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F85a95cbea702be2a68871ebc5d00cd5a.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb9acae060589502cb7b635607cd8fa2c.webp\">","一空心导体球壳,其内、外半径分别为R1和R2,带电荷q.当球壳中心处再放一电量为q的点电荷时,则导体球壳的电势(以无穷远处为电势零点)等于",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],10400362,[102,103,104,105],"E = 0,U &gt; 0","E = 0,U &lt; 0","E = 0,U = 0","E &gt; 0,U &lt; 0","一带负电荷的金属球,外面同心地罩一不带电的金属球壳,则球壳上金属中任一点P处的场强大小与电势(以无穷远处为电势零点)分别为"]