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]
A generator produces 60 A of current at 120 V. The volta( e(x:u;ipjdc ge is usually sxzo:b y16,pb , eddrzc9.0zantepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 W. Find the percentage power lost in thezbxrpd 0e1y 9z.zocb:6 ,adn, transmission line if the voltage is not stepped up.
A. 0.018%
B. 0.036%
C. 25%
D. 50%
参考答案: D
本题详细解析:
暂无
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