本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 通用国际物理
[单选题]
The output of a generator is 4uoi*q)6 -g9tunu6* dlbaun l, 40 V at 20 A. It is 9a fszi 6xv0,rto be transmitted on a line with resistance of 0.60 W. To what voltage must the generator output be step096sr ixvfa z,ped up with a transformer if the power loss in transmission is not to exceed 0.010% of the original power?
A. $4.4 \; kV$
B. $7.3 \; kV$
C. $22 \; kV$
D. $45 \; kV$
参考答案: B
本题详细解析:
暂无
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