[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAyUveb-2eh916wZPklMa48wCGgSZmEpFJQU63oPFMX4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":29,"type":104},[],"2023-06-19 13:38:48",71501516,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},138,"f8baef8b6e01fd7ffc6b87ac154c871b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fade026935985eb37cc6e965b26524f34.jpg","电工学（火电22级）","work_28018019","选择填空判断复习题20230605","电路如图,当电源频率为f时电路呈阻性,若频率为5f时该电路的性质依然为阻性.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F45bc5cb5b5b99723e65a7a890864dc47.png\">",[19,31,40,48,56,65,73,81,88,97],{"answer":20,"createTime":21,"id":22,"options":23,"question":28,"source":29,"type":30},[],"2023-06-19 13:35:49",71498506,[24,25,26,27],"-2","2","10","-10","电路如图所示,已知 Uab=10V,Iab=2A, 则Uba =()V. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd5d90889f396a625d33daf9a7335fd0c.png\">","v1",0,{"answer":32,"createTime":21,"id":33,"options":34,"question":39,"source":29,"type":30},[],71498507,[35,36,37,38],"吸收","发出","两者都不是","不确定","如图所示电路, iba=-2A, uab=5V,电阻吸收还是发出功率?( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F630d95e84a49c50a6cbcb586d9ae723d.jpg\">",{"answer":41,"createTime":21,"id":42,"options":43,"question":47,"source":29,"type":30},[],71498508,[44,45,46,38],"一致","相反","不一致","规定好电流的参考方向后,若计算出电流I>0,则说明实际方向和参考方向的关系为( )",{"answer":49,"createTime":21,"id":50,"options":51,"question":55,"source":29,"type":30},[],71498509,[52,53,54,38],"增大","不变","减小","某电路中,一理想电压源并联一可变电阻,当可变电阻参数减小时,可变电阻两端的电压( )",{"answer":57,"createTime":21,"id":58,"options":59,"question":64,"source":29,"type":30},[],71498510,[60,61,62,63],"U=U s+IR","U=U s-IR","U=- U s+IR","U=- U s-IR","图示电路的基尔霍夫电压方程为( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F11afd0eb3d551c80ce7fdfc6c5e8bc5a.jpg\">",{"answer":66,"createTime":21,"id":67,"options":68,"question":72,"source":29,"type":30},[],71498511,[69,70,71,38],"电阻","电容","电感","白炽灯在通电工作时能把电能转换成热能,消耗电能,具有( )的性质",{"answer":74,"createTime":21,"id":75,"options":76,"question":80,"source":29,"type":30},[],71498512,[77,25,78,79],"1","3","4","在图示电路中,电流I为( )A. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F391b3c74b9151d04c9d2c636c5fdccb5.png\">",{"answer":82,"createTime":21,"id":83,"options":84,"question":87,"source":29,"type":30},[],71498513,[26,27,85,86],"20","-20","当电路如图1连接时U=15V;当如图2连接时U=5V,则US为( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48473bd1b8c500e41f2aa13e438f395d.png\">",{"answer":89,"createTime":21,"id":90,"options":91,"question":96,"source":29,"type":30},[],71498514,[92,93,94,95],"4和3","3和3","3和4","2和2","{在图示电路中,各电阻值和两个电源电压值均已知.欲用支路电流法求解流过电阻R1的电流I,需列出独立的电流方程数和电压方程数分别为( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc93bbac735b3c847f6c907d6e8891ed6.png\">}",{"answer":98,"createTime":21,"id":99,"options":100,"question":103,"source":29,"type":30},[],71498515,[77,101,25,102],"1.5","2.5","已知图中R = 4Ω时,I = 2 A,求R = 8Ω时,I =( )A\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c5b28b735a298b612de0c071c848709.png\">",3]