如图1所示,一理想变压器原、副线圈匝数之比为5:1,交流电源的电

如图1所示,一理想变压器原、副线圈匝数之比为5:1,交流电源的电压(V),电阻Ω,电压表、电流表均为理电表。则下列说法正确的是 (    )

       A.交流电的频率为100Hz  B.电阻R上的功率为1100W

       C.电压表V的示数为  D.电流表A1的示数为

答案

D

相关题目

在中,边、、的垂直平分线相交于,则、、的大小关系是  
在中,边、、的垂直平分线相交于,则、、的大小关系是         .
I had just started back for the house to change my clothes ___ I heard voices.
I had just started back for the house to change my clothes ___ I heard voices.     A.as             B.when           C.after              D.while  
—Victor certainly cares too much about himself.   —Yes. He’s never intere
—Victor certainly cares too much about himself.   —Yes. He’s never interested in what ____ is doing.   A. no one else     B. anyone else     C. someone else    D. nobody else  
化学研究性学习小组同学取 10g 石灰石样品,用足量的稀盐酸
化学研究性学习小组同学取 10g 石灰石样品,用足量的稀盐酸测定石灰石中碳酸钙的质量分数(假设石灰石中杂质不与盐酸反应)。测量 5 分钟内生成 CO
阅读下面的短文,并根据要求回答后面的问题。(注意字数
阅读下面的短文,并根据要求回答后面的问题。(注意字数要求)        [1] If you are applying for an American higher education, you probably dream of getting into an Ivy
One of the most important questions they had to consider was ______ of public he
One of the most important questions they had to consider was ______ of public health.    A. what                         B. this    C. that                
我国在本世纪头二十年的奋斗目标是建设全面惠及十几亿人
我国在本世纪头二十年的奋斗目标是建设全面惠及十几亿人口的更高水平的小康社会。下列属于“全面建设小康社会经济目标”的是(  ) A.实现国内
已知,则不等式的解集是         
已知,则不等式的解集是         

最新题目