[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feX_ukjjgii98Dz8qgxm0VMjuwjAx2J2t0E-g-MUfCEk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-01-04 06:20:18",300624144,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">增大,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">不变","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">增大,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">减小","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">减小,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">不变","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">不变,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">增大",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","直流电磁铁的衔铁吸合后与吸合前比较,磁通\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">和磁阻\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">的变化情况是( )",[18,29,34,43,52,61,70,79,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],300624135,[22,23,24,25],"滞后90°","超前90°","相差120°","同相","纯感性电路,电压的相位比电流的相位()","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":27,"type":28},[],300624136,[23,24,22,25],"纯阻性电路,电压的相位比电流的相位()",{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":27,"type":28},[],300624137,[38,39,40,41],"热能","光能","机械能","动能","电动机是将电能转换为()的动力设备",{"answer":44,"createTime":5,"id":45,"options":46,"question":51,"source":27,"type":28},[],300624138,[47,48,49,50],"磁滞损耗","涡流损耗","饱和效应","集肤效应","由于铁心磁路存在(),故磁路计算时不能采用叠加原理",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":27,"type":28},[],300624139,[56,57,58,59],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6f979215ec98bfccab4313a07591ee4f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F63bbfde88e9530950a1604ac43270dd7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb3d86b98aece62258da358ac76122f30.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F69f4acd1d39db98f2b2c5ecd76c5d1e2.png\">","两个完全相同的交流铁心线圈电路,分别与电压相等\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1c40612bad20861a229c69ed5521cd92.png\">而频率不同\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd93bc9f4a48a16d0881ca0c3a65d880f.png\">的交流电源接通时,其铁心中的主磁通\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F524a5b48f35d2b826b062a93e0691eee.png\"> 和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0aaa383d06b3697570baa268fdc91df0.png\"> 的关系为 ( )",{"answer":62,"createTime":5,"id":63,"options":64,"question":69,"source":27,"type":28},[],300624140,[65,66,67,68],"左手,右手","右手,左手","右手,右手","左手,左手","导体在磁场中作切割磁力线运动,导体两端产生感应电势的方向由()定则判定通电导体在磁场中运动,运动方向由()定则判定",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":27,"type":28},[],300624141,[74,75,76,77],"有效值","最大值","频率","瞬时值","在正弦交流电的一个周期内,随着时间变化而改变的是()",{"answer":80,"createTime":5,"id":81,"options":82,"question":84,"source":27,"type":28},[],300624142,[8,11,83,10],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">不变,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">减小","交流电磁铁的衔铁吸合后与吸合前比较,磁通\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3621bb822351259f5fcaaa9eb6e09d63.png\">和磁阻\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1132712de3838df121bfb0e43da5c5be.png\">的变化情况是( )",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":27,"type":28},[],300624143,[89,90,91,92],"开路","电抗","阻抗","短接","电容器在直流回路中相当于()",{"answer":95,"createTime":5,"id":6,"options":96,"question":16,"source":27,"type":28},[],[8,9,10,11]]