[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ffbCDtzVrl2cRbUU6FMF9FRxPYqf2semY9aS7zlf35fw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-11 14:46:34",5225243,[8,9,10,11],"电容元件具有"通交流,隔直流"的性质","电容元件具有"通高频,阻低频"的性质","电容元件是一个储能元件","电容元件是一个耗能元件",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},40,"b8a1f7e7cc781e9fc70396e02185f505","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f9fd1984c0fe61d4fe4bfe81a47087.jpg","电工电子技术","3875b19166a449f0905b2fbb0af5dbe4","12.单元测试—正弦交流电路","关于电容元件,以下说法错误的是( )",[21,32,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],5225242,[25,26,27,28],"电阻元件上的电压和电流为同频率的正弦量","电压和电流的最大值之间的关系符合欧姆定律","电压和电流的有效值之间的关系不符合欧姆定律","电压和电流的相位相同(相位差为0)","当电阻元件两端接上正弦交流电压电源时,电阻中就有正弦交流电流通过,比较电压与电流,以下说法不正确的是( )","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},[],5225244,[39,40,41,42],"正比,超前","反比,超前","正比,滞后","反比,滞后","电感线圈对交流电的阻碍作用称为感抗,其值与频率成( ),流过纯电感线圈中的电流比它两端的电压在相位上( )90°",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],5225245,[48,49,50,51],"滞后,容性","滞后,感性","超前,容性","超前,感性","当\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F01f91a0e984a666b582d14464030f974.webp\">时,阻抗角 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F792b911b4f90549ec646705f5170eefd.webp\"> 为正,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7fc4706f62f4936c6dd9d9fd7d5437ba.webp\">,电压( )于电流,电路为( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],5225246,[57,58,59,60],"同向,感性","反向,感性","同向,电阻性","反向,电阻性","当 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9626e8a657cde629304877c76e2f546f.webp\"> 时,阻抗角 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F792b911b4f90549ec646705f5170eefd.webp\"> 为0,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F11296f8a52566d297b727281247576d3.webp\"> ,电压与电流( ),电路为( ).这时电路发生串联谐振",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],5225247,[66,67,68,69],"2A,110Ω","2A,55Ω","4A,110Ω","4A,55Ω","设加于440W电炉上的电压为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb7e40c215a7e1132b0f75646f2078755.webp\">,请问电炉丝的电阻R=( ),和通过电炉丝的电流 I =( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],5225248,[75,76,77,78],"1","2","5","10","若电容元件两端的电压 u=10sin(314t+45°)V,电流 i=5sin(314t+135°)A,则该元件容抗为( )Ω",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],5225249,[84,85,86,87],"电阻性","电感性","电容性","中性","在RLC串联正弦交流电路中,已知R=20Ω,XL=40Ω,Xc=80Ω,则该电路呈( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],5225250,[93,94,95,96],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa9550a665d688c565af97bc71696a3e3.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F04d84d3aed65fd7ac6e7643c72ddaab4.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F45d62b022e75cfdd1ab71101bf435776.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1b280ef74c5b48cc8a3943bc06bd9388.webp\">","已知两个正弦量分别为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F472991a6db03413d5b1f3fdc9d8f4de0.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8f6ce99e63d2c878da4a6bc652e5e6e.webp\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2a9d308b832fa124b38ec9466d9348c8.webp\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F43818bb347e68bc5e32e936133565265.webp\">的相位差为( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],5225251,[102,103,104,105],"0.01s,100A","0.02s,100A","0.01s,70.7A","0.02s,70.7A","某正弦电流\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe6528088a4ab262a5fd40be169498611.webp\">,则其周期和有效值为( )"]