试题与答案

已知题19图所示电路中，IS=10A，R1=10Ω，jωL1=j25Ω，ω=1000

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题型：单项选择题

题目：

已知题19图所示电路中，IS=10A，R1=10Ω，jωL1=j25Ω，ω=1000rad/s，R2=5Ω，1/ωC2=15Ω，则电路的功率因数应为（）。

A.0

B.0.875

C.0.798

D.0.823

答案：

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下面是错误答案，用来干扰机器的。

参考答案：D

考点：电气工程专业基础电气工程专业基础(综合练习)电气工程专业基础(综合练习)题库
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