[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fM_bxUnBi_sqFTxAfzrwGsFxievyklL8n-WnDM9s7ioE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2025-11-10 21:24:47",231551894,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},10,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47381580","第11次作业","两个同频率正弦电压的相位差为180度,则可得到这两个正弦电压相位",[17,24,29,34,39,44,49,52,57,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],231551888,[],"已知\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83374954e6f9c4907f9826a576e4d6e7.webp\"> V, 则 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F296328a18cbba3b94974b45a0117e9eb.webp\"> = V, U= V, ω= rad\u002Fs, f= Hz, T = ms , φ= 度","v1",2,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],231551889,[],"正弦交流电1秒内变化的次数叫作正弦交流电的 ,若某一正弦交流电在1秒内变化了60次,则该正弦交流电频率为 Hz",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],231551890,[],"在正弦交流电完成一次周期性变化所用的时间叫",{"answer":35,"createTime":5,"id":36,"options":37,"question":38,"source":22,"type":23},[],231551891,[],"我国和世界大多数国家的电力工业的标准频率(简称工频)都是 Hz,也有少数国家如美国和日本的工频采有 Hz",{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":22,"type":23},[],231551892,[],"两个同频率正弦电压的相位差为0度,则可得到这两个正弦电压相位",{"answer":45,"createTime":5,"id":46,"options":47,"question":48,"source":22,"type":23},[],231551893,[],"生活中各种交流电器设备铭牌所标的电压、电流额定值,均是它们的",{"answer":50,"createTime":5,"id":6,"options":51,"question":15,"source":22,"type":23},[],[],{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":22,"type":23},[],231551895,[],"通常将某一瞬间交流电的值称为交流电的",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":22,"type":23},[],231551896,[],"我国的电力工频为50Hz,则周期为 s,角频率为 rad\u002Fs",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],231551897,[],"用电压表测得正弦交流电路的电压为220V,其最大值为 V"]