题目内容
[单选题]线性电路N,当
,可获得最大功率,且此最大功率为40W。N等效电路的开路电压为( )V 。
(每题0.5分)(0.5)
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69422' and id < 4495025 and id<>'4495025' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69422' and id > 4495025 and id<>'4495025' order by id asc limit 5