Physics Unit21: Electromagnetic Induction & Faraday's Law (id: d0ab864a1)

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]
An ac series circuit has an impedance ow67sh a+i khd,*na)vn f 60 W and a resistance ofd:f2xv7rqo: : 5jk inq4vnk6f 30 W. What is the power xko qf:n2qfk4n :jr v6d5:7vi factor?

A. 0.50
B. 0.71
C. 1.0
D. 1.4


参考答案:  A


本题详细解析: 暂无

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