若某一电路的端电压U=200∠30°V，非关联参考方向的电流I=20Ω（-120°）A,则该电路的等效复阻抗Z=（）Ω.

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32673' and id < 2599133 and id<>'2599133' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32673' and id > 2599133 and id<>'2599133' order by id asc limit 5