图示电路为对称三相电路。已知[img=180x23]1802d0ee61da8b7.png[/img],三相电压源相电压有效值为300V,则C相电流有效值[img=18x22]1802d0ee6a04d0b.png[/img]等于[img=2265x1355]1802d0ee7b76bcf.jpg[/img][img=2125x1355]1802d0ee8ebfe16.jpg[/img]
A: [img=77x26]1802d0ee97b6915.png[/img]
B: [img=68x26]1802d0eea14df3a.png[/img]
C: [img=77x26]1802d0eea9b116c.png[/img]
D: [img=45x26]1802d0eeb1979a0.png[/img]
A: [img=77x26]1802d0ee97b6915.png[/img]
B: [img=68x26]1802d0eea14df3a.png[/img]
C: [img=77x26]1802d0eea9b116c.png[/img]
D: [img=45x26]1802d0eeb1979a0.png[/img]
举一反三
- 图示电路为对称三相电路。已知[img=180x23]1802d0ee61da8b7.png[/img],三相电压源相电压有效值为300V,则C相电流有效值[img=18x22]1802d0ee6a04d0b.png[/img]等于[img=2265x1355]1802d0ee7b76bcf.jpg[/img][img=2125x1355]1802d0ee8ebfe16.jpg[/img] 未知类型:{'options': ['', '', '', ''], 'type': 102}
- 下列4个集合中是空集的是() A: {x|[img=18x22]1802f060e2f728f.png[/img]+1=0} B: {x|[img=18x22]1802f060e2f728f.png[/img]<-x} C: {x|[img=18x22]1802f060e2f728f.png[/img]=0} D: {x|[img=18x22]1802f060e2f728f.png[/img]-1=0}
- 下列4个集合中是空集的是() A: {x|[img=18x22]1803d021d498831.png[/img]+1=0} B: {x|[img=18x22]1803d021d498831.png[/img]<-x} C: {x|[img=18x22]1803d021d498831.png[/img]=0} D: {x|[img=18x22]1803d021d498831.png[/img]-1=0}
- 下列4个集合中是空集的是() A: {x|[img=18x22]1803d0240bcad39.png[/img]+1=0} B: {x|[img=18x22]1803d0240bcad39.png[/img]-x} C: {x|[img=18x22]1803d0240bcad39.png[/img]=0} D: {x|[img=18x22]1803d0240bcad39.png[/img]-1=0}
- 已知[img=220x43]1802fca0bce8129.png[/img],则为()。 A: x(0)=0 B: x(0)=1 C: x(∞)=2 D: x(∞)=∞