[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fWi6ateBXLrljjdJPVq_d36ttmpYVRRPUs2oIWSkIYjA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-06-09 16:47:45",196992133,[8,9,10,11],"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",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},19,"05cc272230f763aa814d04fc4b242c05","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb71f5ef0bc91dad807788d7bf753eb02.png","大学物理","work_42586882","7.6测验","两平行大金属板,面电荷密度分别为+σ和-σ,以下说法正确是",[21,26,35,44,54,64,72,78,84,94],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],196992142,[30,31,32,33],"E = 0,U > 0","E = 0,U < 0","E = 0,U = 0","E > 0,U < 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",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],196992149,[39,40,41,42],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5cb765147bf2f43206774c0750eb2cf0.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3928e22d8d134ac2c1f194b755812e38.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c29dadc31d04dc4e697f66b4fd28d0f.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd650a81d4c14f6c76f508ee173934b00.webp\">","A、B为两导体大平板,面积均为S,平行放置.A板带电荷+q1,B板带电荷+q2,如果使B板接地,则AB间电场强度的大小等于",{"answer":45,"createTime":46,"id":47,"options":48,"question":53,"source":24,"type":25},[],"2025-06-09 16:47:46",196992159,[49,50,51,52],"a点","b点","c点","三点一样大","如图所示为一个右端为锥形的圆柱形孤立带电导体,a、b、c是导体表面上的三个点,则电荷面密度最大的点是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7df065bba0443e531616e337b22c15d1.png\">",{"answer":55,"createTime":56,"id":57,"options":58,"question":63,"source":24,"type":25},[],"2025-06-09 16:47:47",196992163,[59,60,61,62],"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":65,"createTime":56,"id":66,"options":67,"question":70,"source":24,"type":71},[],196992170,[68,69],"正确","错误","对于孤立带电导体,在导体外,表面附近的场强的方向垂直于该处的表面",3,{"answer":73,"createTime":74,"id":75,"options":76,"question":77,"source":24,"type":71},[],"2025-06-09 16:47:48",196992194,[68,69],"一空气平行板电容器,与恒定电压的电源保持相连,在两平行板间平行地插入一块厚度均匀的金属平板,则电容器的带电量变大",{"answer":79,"createTime":80,"id":81,"options":82,"question":83,"source":24,"type":71},[],"2025-06-09 16:47:49",196992199,[68,69],"在一个带负电荷的金属球附近,放一个带正电的点电荷q0,测得q0所受的力为F,则F \u002F q0的值一定小于不放q0时该点原有的场强大小",{"answer":85,"createTime":86,"id":87,"options":88,"question":93,"source":24,"type":25},[],"2025-06-11 15:43:53",198458593,[89,90,91,92],"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":95,"createTime":96,"id":97,"options":98,"question":103,"source":24,"type":25},[],"2025-06-11 15:43:54",198458607,[99,100,101,102],"球壳内的电场强度和电势均为零","球壳内的电势与球壳上的电势相等","球壳外的电势比球壳上的电势高","球壳内的电势比球壳外的电势高","对于带电的孤立导体球壳"]