单项选择题
Raw data collected from customers are not enough to tell anything about customer insights.
A、True
B、False
Raw data collected from customers are not enough to tell anything about customer insights.
A、True
B、False
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单项选择题
阻感负载的三相桥式整流电路如图所示,假设交流侧电感为0,负载L极大,id=Id,α=30º。当相电压Ua=100V ,电源频率为50Hz,R=2.03Ω时,负载获得的有功功率和负载电流各为多少?
阻感负载的三相桥式整流电路如图所示,假设交流侧电感为0,负载L极大,id=Id,α=30º。当相电压Ua=100V ,电源频率为50Hz,R=2.03Ω时,负载获得的有功功率和负载电流各为多少?
A.Id≈120A,P≈29232W
B.Id≈200A,P≈81200W
C.Id≈85A,P≈14667W
D.Id≈100A,P≈20264W