[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fovyrOtFZoOlgwOlPy_r7oFnCi6aKVa9OpIILl2Y6p-c":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-04-28 19:23:58",140760354,[8,9,10,11],"1Ω","2Ω","3Ω","4Ω",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},13,"5ab94fa69b684c14b39c6741b7ab5448","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","电工电子基础","work_34654879","第五次实验报告","电感接在有效值为2V的交流电压源两端,已知吸收Q=1var,则该电感的感抗是( )",[21,32,35,44,53,62,71,79,85,89],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],140760353,[25,26,27,28],"i(t)=sin(314t+90°)A","i(t)=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7faefe13e66790e2b48ed3a708be0778.webp\">sin(314t+90°)A","i(t)=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbc1624fdb8815580ac762a55630a6d0e.webp\">cos(314t+90°)A","i(t)=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7faefe13e66790e2b48ed3a708be0778.webp\">cos(314t+90°)A","正弦交流电流的频率为50Hz,有效值是1A,初相角90°,其瞬时值表达式为( )","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],140760355,[39,40,41,42],"电阻","电感","电容","电动势","已知交流电路中,某元件的阻抗与频率成反比,则该元件是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],140760356,[48,49,50,51],"电压有效值与电流有效值乘积","平均功率","瞬时功率最大值","瞬时功率平均值","正弦交流电路的视在功率是表征该电路的( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],140760357,[57,58,59,60],"电阻性","电感性","电容性","以上答案都不是","RLC串联电路在f0时电路呈现纯电阻特性,当频率增加到2f0时,电路性质呈( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],140760358,[66,67,68,69],"28V","20V","2V","12V","在RL串联电路中,UR=16V,UL=12V,则总电压为( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":78,"source":30,"type":31},[],140760359,[69,75,76,77],"24V","48V","36V","已知在R、L串联的正弦交流电路中,总电压U=30V,L上的电压UL =18V,则R上的电压UR =( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":30,"type":84},[],140760360,[],"在RLC串联电路中,已知电流为5A,电阻为30Ω,感抗为40Ω,容抗为80Ω,那么电路的阻抗为( ),该电路为( )性电路.电路中吸收的有功功率为( ),吸收的无功功率为( )",2,{"answer":86,"createTime":5,"id":87,"options":88,"question":70,"source":30,"type":84},[],140760361,[],{"answer":90,"createTime":5,"id":91,"options":92,"question":95,"source":30,"type":96},[],140760362,[93,94],"正确","错误","正弦交流电路的视在功率等于有功功率和无功功率之和",3]