[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBYZsNZpZigsvh8p5rfxzUTocBSylmi-0APWTV_Jhjvs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-06-15 04:44:34",200846668,[8,9,10,11],"0","0.5","2","1",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_44243068","随堂测试1","wt+&phi;我们称之为正弦波的相位角也称相位,当t为何值时,得到初相",[21,32,41,48,57,60,68,73,78,83],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],200846664,[25,26,27,28],"最大值","角频率","相位","初相","正弦交流电的三要素不包括","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],200846665,[36,37,38,39],"同相","反相","相等","不确定","两个同频率正弦交流电的相位差等于 1800 时,则它们相位关系是",{"answer":42,"createTime":5,"id":43,"options":44,"question":47,"source":30,"type":31},[],200846666,[45,10,9,46],"&radic;2","4","正弦交流电的最大值等于有效值的",{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":30,"type":31},[],200846667,[52,53,54,55],"220V","311V","380V","320V","白炽灯的额定工作电压为 220V,它允许承受的最大电压",{"answer":58,"createTime":5,"id":6,"options":59,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":61,"createTime":5,"id":62,"options":63,"question":66,"source":30,"type":67},[],200846669,[64,65],"正确","错误","正弦量的三要素是指其最大值、角频率和相位",3,{"answer":69,"createTime":5,"id":70,"options":71,"question":72,"source":30,"type":67},[],200846670,[64,65],"正弦量可以用相量表示,因此可以说,相量等于正弦量",{"answer":74,"createTime":5,"id":75,"options":76,"question":77,"source":30,"type":67},[],200846671,[64,65],"我们国家电网频率是50赫兹,也就是我们的工频",{"answer":79,"createTime":5,"id":80,"options":81,"question":82,"source":30,"type":67},[],200846672,[64,65],"正弦交流电波随着时间进行在做周期性的变化",{"answer":84,"createTime":5,"id":85,"options":86,"question":87,"source":30,"type":67},[],200846673,[64,65],"三相交流电在360&deg;完全对称"]