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 sq -x0terz xr3f9 s+a0fmo(p9voltage is uslnj,l7 v,g aqm-og 9jy7w5i-lually stepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 W. Find the number of tur7gy 5 ollj7 jiwal vq-9,ng,-mns in the secondary if the primary has 200 turns.
A. 5
B. 200
C. 4500
D. 7500
参考答案: D
本题详细解析:
暂无
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