如果将额定电压为220V/ 110V的变压器接入220V的直流电源，则将发生什么现象？（     ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id < 4421336 and id<>'4421336' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id > 4421336 and id<>'4421336' order by id asc limit 5