远距离输电时,为了减小输电线路上的电能损失,常用升压变压器提升电压,如果升压变压器把电,压升高4倍,则输电线路上电能损失为原来的()

A.<img src='https://img2.soutiyun.com/ask/uploadfile/2319001-2322000/ef08f1e79c843c0c6bbc2e7624f9db68.gif' /> B.<img src='https://img2.soutiyun.com/ask/uploadfile/2319001-2322000/75c017a39df95516763e429704f957b1.gif' /> C.<img src='https://img2.soutiyun.com/ask/uploadfile/2319001-2322000/f6180363b14aa64e567f8a4c1d2dcb96.gif' /> D.<img src='https://img2.soutiyun.com/ask/uploadfile/2319001-2322000/e538d456ab2057e38534b88aef223a28.gif' />

时间:2023-08-11 15:15:52

相似题目