Physics Unit18: Electric Currents (id: ee09198e4)

本题目来源于试卷: Physics Unit18: Electric Currents，类别为 通用国际物理

[单选题]
A motor that can do wp6 e.gthw,km,ork at the rate of 2.0 hp has 60005t 6ebvrzz a% efficiency. How much current does i zbtz5a r00ve6t draw from a 120-V line? ($1 \; hp = 746 \; W$)

A. $12 \; A$
B. $17 \; A$
C. $21 \; A$
D. $29 \; A$


参考答案:  C


本题详细解析: 暂无

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