单项选择题

变压器采用多跟导线并绕的线圈，换位的目的是()。

A.减少导线的涡流损耗
B.降低短路
C.减少电势差引起的导线损耗
D.改善对地电容

<上一题目录下一题>

热门试题

未分类题

Dawna Markova most probably agree thatA．ideas are born of a relaxing mind.B．innovativeness could be taught.C．decisiveness derives from fantastic ideas.D．curiosity activates creative minds.

未分类题

【B9】A．covered upB．started upC．brought upD．set up