[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fJOJFIPZggf0HzIo4N5rzELhDoSv2JncesmagimbdqmU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":28,"type":29},[],"2025-12-26 07:12:19",286965547,[8,9,10,11],"このグループの歌が好きだから","友達がこのグループのファンだから","グループのリーダーが好きだから","グループのリーダーのポスターがほしいから",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","2-4(4.0) <iframe src="\u002Fananas\u002Fcommon-modules\u002Faudioplay\u002Faudioplay.html?objectid=2e168654a901ea673efd168bce602d38"><\u002Fiframe>",[18,30,39,48,57,66,75,84,93,98],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2025-12-17 18:53:35",270312544,[23,24,25,26],"高斯面上各点场强均为零","穿过高斯面上每一面元的电通量均为零","穿过整个高斯面的电通量为零","以上说法都不对","20.若一高斯面所包围的体积内电量代数和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdb188263aba9b78e1ab9582ffae45b63.jpg\">,则可肯定: ( )","v1",0,{"answer":31,"createTime":20,"id":32,"options":33,"question":38,"source":28,"type":29},[],270312545,[34,35,36,37],"电量相等,符号相同","电量相等,符号不同","电量不等,符号相同","电量不等,符号不同","两个点电荷相距一定距离,若在这两个点电荷连线的中垂线上电位为0,那么这两个点电荷带电情况为( )",{"answer":40,"createTime":20,"id":41,"options":42,"question":47,"source":28,"type":29},[],270312546,[43,44,45,46],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F973f837d0863fa78f6d2955633e2be2e.jpg\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9e591858c47713fb739b9a565b0c7745.jpg\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3aedb97bcd32dc5672b6b1b48b92ebd6.jpg\">","不能确定","19.同一束电力线穿过大小不等的两个平面\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc5a22cf7e1b4b96421a7f5828bf37ddd.jpg\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F95ae59af2bac0ce231f1ee7fad90a972.jpg\">,如图所示.穿过面\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc5a22cf7e1b4b96421a7f5828bf37ddd.jpg\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F95ae59af2bac0ce231f1ee7fad90a972.jpg\">的电通量( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb81bc044f3ec0c22065500ff12e5a88d.jpg\">",{"answer":49,"createTime":20,"id":50,"options":51,"question":56,"source":28,"type":29},[],270312547,[52,53,54,55],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F72adfd55b5300bb5045adc9cf3fee70c.jpg\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F68ead5e3c1e3b69b529c75d8a8e9b51e.jpg\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F53de3aec8791287e99602ae7e946fe6f.jpg\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4aa15028dde6fb8f3bc7ebc0d6e8959d.jpg\">","35.边长为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F614986d8e424e42994bc0dc6a83e1a28.jpg\">的立方体中心置一电量为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F35e4babccbdda693cfa41c8587226028.jpg\">的点电荷,则通过任一表面的电通量为 ( )",{"answer":58,"createTime":20,"id":59,"options":60,"question":65,"source":28,"type":29},[],270312548,[61,62,63,64],"(1)(4)","(2)(3)","(1)(3)","(2)(4)","电场的环流定理\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb359cba3f98fc7ae20475d744ff754d2.jpg\">,说明了静电场的哪些性质( ) (1)静电场的电力线不是闭合曲线 (2)静电力是保守力 (3)静电场是有源场 (4)静电场是保守场",{"answer":67,"createTime":20,"id":68,"options":69,"question":74,"source":28,"type":29},[],270312549,[70,71,72,73],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F918e137e7b80b6abc54cd969cdc71ff4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F69f28e9ef079b0c9149ca065b1e7e5c4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc4583aaef337379b063a3acbfd0c5793.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31de8c8e8b81dbfef8b4692ff8575909.png\">","在图(a)和(b)中各有一半径相同的圆形回路\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54401a2cf52537bd023c6819ddcc6616.png\">、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd99927c3727bedc1f6d7526585aae108.png\">,圆周内有电流\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0033ba893e601159ee74dcff444459cd.png\">、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F647436c0f01a4732045c6f6f5411bbdd.png\">,其分布相同,且均在真空中,但在B、图中\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd99927c3727bedc1f6d7526585aae108.png\">回路外有电流\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa2be6935abf5e27e2174c6eadceef3c3.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F02ca3f0359fe72c965c5ef4a67563c6d.png\">、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F88664f8e3696eb88b3aec7a40668f841.png\">为两圆形回路上的对应点,则:( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F535e34e6605dd830568a2d1fca4dbef4.png\">",{"answer":76,"createTime":20,"id":77,"options":78,"question":83,"source":28,"type":29},[],270312550,[79,80,81,82],"x  0","y  0","y  x","y=-x","在XOY平面上有两根彼此垂直的、相互绝缘的长直导线,分别载流 I ,如图,XOY平面上磁感应强度为 0 的轨迹方程为( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd5ec0f162455ab6065f2a691ae4d7fbd.png\">",{"answer":85,"createTime":20,"id":86,"options":87,"question":92,"source":28,"type":29},[],270312551,[88,89,90,91],"抛物线","双曲线","椭圆","螺旋线","带电粒子在均匀磁场中最一般的运动轨迹为( )",{"answer":94,"createTime":20,"id":95,"options":96,"question":97,"source":28,"type":29},[],270312552,[63,64,62,61],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe03ceffb8084619965bb1e9e936ac299.png\">",{"answer":99,"createTime":20,"id":100,"options":101,"question":106,"source":28,"type":29},[],270312553,[102,103,104,105],"该质点总的运动是自由落体运动和圆周运动的叠加","该质点在磁场区域中所受的合力是一个恒力","该质点在磁场区域中所受的合力是一个大小不变,方向改变的力","该质点在磁场区域中所受的合力是重力和洛仑兹力的合力","在重力场中一个带电质点由静止开始垂直下落,中间穿过一均匀磁场区域且磁场方向与重力方向正交.则 ( )"]