已知一节点所带负荷,有功功率为P,视在功率为S,则功率因数角<img src="/lqwvjeImg/ec/ecfef35e202d7ceb4d389a8298aabe00.png" style="width:17px;height:20px;">为( )<br>·<img src="/lqwvjeImg/cd/cd2d32de570fc5e28a8c3157b737792b.png" <br>·<img src="/lqwvjeImg/64/64f598f0128fbaeddc19b4ae2df99fe6.png" <br>·<img src="/lqwvjeImg/13/1384179e12caa9e566ba9e7c5d7bc8b5.png" <br>·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/169830277970398b3de38da2e4e39ac5acc589d1b907dimage5.png"

已知一节点所带负荷,有功功率为P,视在功率为S,则功率因数角

为( )
·

·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/169830277970398b3de38da2e4e39ac5acc589d1b907dimage5.png"

出自：佳木斯大学语言治疗学

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