[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmYfl1Qu01iftWoCIB7mTuJ2srq9bqGEZq88uQV5LpSg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-12-08 20:14:30",168706224,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff784537fbacfecf420300f65d83eb40c.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3122bafffa686c4e02501d23ec44f89.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4baa11214d9966c8a8672ae8ea3755ca.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3122bafffa686c4e02501d23ec44f89.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca7ceef2b14116e568392f1ba399fefd.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9ea66019b541ff25139deebcc658fd33.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca7ceef2b14116e568392f1ba399fefd.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc3122bafffa686c4e02501d23ec44f89.png\">",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},121,"06ec16017f5273c872e25cefc0edc670","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F24226765334cca4df66dc42ec7223128.jpg","大学物理（2）","work_39481478","章节测试-1","有两个点电荷电量都是+q,相距为2a.今以左边的点电荷所在处为球心,以a为半径作一球形高斯面.在球面上取两块相等的小面积S1和S2,其位置如图所示.设通过S1和S2的电场强度通量分别为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa95885b4de045ed078e58700b9c4c397.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca19820269295e0f68a46d2cc22a10d9.png\">,通过整个球面的电场强度通量为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7802cbf4a64ba5fb10e00f9caf5ec1ae.png\">,则 ( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbfd8a22019509b6274cf0d2b9f5d45f1.jpg\">",[21,33,43,46,56,66,76,85,95,105],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-12-03 20:07:00",168706222,[26,27,28,29],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Faeffcb63297b7cf42448f85e5234c86f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3c3e3f8ddb2d79c5484c37942b4ccf13.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F49028bcf372cf3dcc42d1d55aecf61dd.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe34a44ea86abd4930489e6b8679d1962.png\">","如图所示,a、b、c是电场中某条电场线上的三个点,由此可知( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fed10608410b33d20451feb7fbfa492e2.jpg\">","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":42,"source":31,"type":32},[],"2024-12-08 22:19:33",168706223,[38,39,40,41],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F176e944f7929b6dcea7a909f058bad8d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe9e61fdd314e056353b06952de7fdcd7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9ecc7b23226ae4e0a5ecf78cfd975518.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F519060ed779552ae36f020b1e10f9ed8.png\">","真空中一"无限大"均匀带负电荷的平板,电荷面密度为-s(s>0),其电场强度的分布曲线应是(坐标原点在板所在位置,且设方向向右为正、向左为负) ( )",{"answer":44,"createTime":5,"id":6,"options":45,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":47,"createTime":48,"id":49,"options":50,"question":55,"source":31,"type":32},[],"2024-12-17 13:09:09",168706225,[51,52,53,54],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F467b7d802a4c908cd946f86122866e6d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff9db887a256cf58d035531047367d0b1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa257c7dc0bf7ef5fdf82a4f3469c267b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fefe2a79a339b212157743ccb6cbb9afd.png\">","真空中面积为S,间距为d的两平行板(S>>d\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F847f1479efe2209f96682f512a425e81.webp\">),均匀带等量异号电荷+q和-q,忽略边缘效应,则两板间相互作用力的大小是( )",{"answer":57,"createTime":58,"id":59,"options":60,"question":65,"source":31,"type":32},[],"2024-12-08 22:31:41",168706226,[61,62,63,64],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fed95ac3a7afa6f8617dd989e8dda85ef.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb64242f7f1494d3d92134d4670baf53b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd7838f88d5095e43e64492497518359.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0d9bae2945852df20ebcb4e3ed3cd46f.png\">","如图所示,一个带电量为q的点电荷位于立方体的A角上,则通过侧面abcd的电场强度通量等于( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22980de299f1da6104a2e2b5bcbc19f2.jpg\">",{"answer":67,"createTime":68,"id":69,"options":70,"question":75,"source":31,"type":32},[],"2024-12-03 12:31:28",168706227,[71,72,73,74],"2C","3 C\u002F2","2C\u002F3","C","一空气平行板电容器,极板间距为d,电容为c.若在两板中间平行地插入一块厚度为d\u002F3的金属板,则其电容值变为( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F372ac29eff5a5f3d71b17f9b369af67c.png\">",{"answer":77,"createTime":48,"id":78,"options":79,"question":84,"source":31,"type":32},[],168706228,[80,81,82,83],"闭合面内的电荷代数和不为零时,闭合面上各点场强一定处处不为零","闭合面内的电荷代数和为零时,闭合面上各点场强不一定处处为零","闭合面内的电荷代数和为零时,闭合面上各点场强一定为零","闭合面上各点场强均为零时,闭合面内一定处处无电荷","根据高斯定理的数学表达式\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa670176b0057241e99c3f3fcb916bb82.png\">可知下述各种说法中,正确的是( )",{"answer":86,"createTime":87,"id":88,"options":89,"question":94,"source":31,"type":32},[],"2024-12-24 11:40:47",168706229,[90,91,92,93],"可能变大","一定不变","可能变小","不能确定","A、B两个点电荷间距离恒定,当其它电荷移到A、B附近时,A、B之间的库仑力将( )",{"answer":96,"createTime":97,"id":98,"options":99,"question":104,"source":31,"type":32},[],"2024-12-08 22:51:30",168706230,[100,101,102,103],"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为零","表面上电荷密度较大处电势较高","当一个带电导体达到静电平衡时( )",{"answer":106,"createTime":48,"id":107,"options":108,"question":113,"source":31,"type":32},[],168706231,[109,110,111,112],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F77214b5ed227be45e2b3b2acc40c3879.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c8890dcb9fcb3dd88b475126dfcb8c1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9a51508126d2699974381f4cdb6b5aa5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1503d48ea93f12cb8b81c365ce1cb9c9.png\">","一导体球外充满相对介电常量为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff1978ea65b377e9e5adc9922c89ce19c.png\">的均匀电介质,若测得导体表面附近场强为E, 则导体球面上的自由电荷面密度σ为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F81dfa672c06270f98029145c404d48de.gif\">( )"]