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 DC motor have a resistanuh7e h5dx/e6;yk q.nst; j7mqce of qic f-jc kz4n7r2k,bp 1x8na 86.00 W. The motor operates on 120 V AC, and when running at full speed it generates a backr pfbk,2ciq c8n7a1 z4k-j8nx $emf$ 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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