Physics Unit21: Electromagnetic Induction & Faraday's Law (id: af9d0081b)

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 windings of a DC3m/3 .zyugpvq: ;pi qi:iwk,gfs7 :mbm2nn+c motor have a resistance of 6.00 W. The motor operates on 120 V AC, and when running w:kcn2+mfni b7 :msg,at full speed it generates a back $emf$ of 105 V. What current does the motor draw when operating at full speed?

A. $2.50 \; A$
B. $17.5 \; A$
C. $20.0 \; A$
D. $37.5 \; A$


参考答案:  A


本题详细解析: 暂无

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