[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftkhEqXQq9d27_tmtpQJ5Kksk6MT7MXBsjaoZdRtKnkI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-04-13 09:25:35",339442487,[8,9,10,11],"q1所受的总电场力不变","q2所受的总电场力不变","q1所受的总电场力发生了变化","q1所受的电场力F12也发生了变化",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","在没有其它电荷存在的情况下,一个点电荷q1受另一点电荷q2的作用力为F12,当放入第三个电荷Q后,以下说法正确的是( )",[18,29,38,47,56,64,73,82,91,100],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],339442478,[22,23,24,25],"同种电荷相互排斥; 异种电荷相互吸引","每个电子所带电量正好是一个基本单位电量","中性物体失去电子带正电","物体所带电荷与它的运动状态相关","以下说法错误的是()","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],339442479,[33,34,35,36],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe32704e18700503cb8682b416ea4bebe.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F51df59160bf971c8e1b4cbf63cdaff5c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fabcca20da6419fa734d27bdca5f78a2e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F26f36cb63f87d9196fef0c9171e13fa4.png\">","真空中,两个静止点电荷之间的作用力为()",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],339442480,[42,43,44,45],"场中某一点的场强方向就是将点电荷放在该点所受电场力的方向","场中某一点的场强方向与正的点电荷放在该点所受电场力的方向一致","场中某一点的场强大小等于电荷在该处受到的电场力的大小","在以点电荷为球心的球面上,由该点电荷所产生的场强处处相同","以下说法正确的是( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],339442481,[51,52,53,54],"电场强度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5378632ae6032a6bc106f291d8342fcc.png\">的大小与试验电荷\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F263d756d197817a543b84cdabaf3fcde.png\"> 的大小成反比","电场中某一点的试验电荷受到的电场力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F89030784a437f59d010173edc08db3fa.png\">与试验电荷量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F263d756d197817a543b84cdabaf3fcde.png\">的比值和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F263d756d197817a543b84cdabaf3fcde.png\">无关","试验电荷受到的电场力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F89030784a437f59d010173edc08db3fa.png\">的方向就是电场强度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5378632ae6032a6bc106f291d8342fcc.png\">的方向","若电场中不存在试验电荷,则电场力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9288fc919285750e704e3958aade27b0.png\">,从而电场强度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F40186b4bbf91e6aac1e498f67eaac2fb.png\">","关于电场强度定义式\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbbcad1a9e2a426ce87d2eb3e536c04f3.png\">,下列说法正确的是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":46,"source":27,"type":28},[],339442482,[60,61,62,63],"静电场中某一点的场强方向就是将点电荷放在该点所受电场力的方向","场强的方向可由\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F970f8b69f61c8227151c491856206b03.png\"> 定出,其中q可正可负","场强的方向可由\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F970f8b69f61c8227151c491856206b03.png\"> 定出,其中q必须为正电荷","在以点电荷为球心的球面上,由该点电荷所产生的电场强度处处相同",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":27,"type":28},[],339442483,[68,69,70,71],"电场中某点场强的方向,就是将点电荷放在该点所受电场力的方向","在以点电荷为中心的球面上,由该点电荷所产生的场强处处相同","场强方向可由\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffd6404cf42aaffcb144bab34fd45e899.png\">定出,为静止的正试验电荷所受到的电场力的方向","以上说法都不正确","下列说法中哪一个是正确的?( )",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":27,"type":28},[],339442484,[77,78,79,80],"电荷电量大,受的电场力可能小","电荷电量小,受的电场力可能大","电场中场强为零的点,任何点电荷在此受的电场力为零","电荷在某点受的电场力与该点电场强度方向一致","以下说法错误的是 ( )",{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":27,"type":28},[],339442485,[86,87,88,89],"电场强度E正比于F","电场强度E正比于F反比于q0","电场强度E反比于q0","E与试验电荷q0的大小及其受力F无关","试验电荷q0在电场中某点受力为F,得该点的电场强度的大小为E=F\u002Fq0,则以下说法正确的是( )",{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":27,"type":28},[],339442486,[95,96,97,98],"点电荷的电场","静电场","均强电场","任何电场","电场强度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F857c5a6045681cdf7a4121d8dc1deafd.png\">这一定义的适用范围是( )",{"answer":101,"createTime":5,"id":6,"options":102,"question":16,"source":27,"type":28},[],[8,9,10,11]]