已知工频对称三相电路中,A相电压为220V,初相为30°,则A.C相电压的解析式是( )B.uB=220sin(100πt-120°)V,uC=220sin(100πt+120°)VC.uB=220sin(100πt-90°)V,uC=220sin(100πt+150°)VD.uB=220/2sin(100πt-120°)V,uC=220/2sin(100πt+120°)VE.uB=220/2sin(100πt-90°)V,UC=220/2sin(100πt+150°)V
已知工频对称三相电路中,A相电压为220V,初相为30°,则
A.C相电压的解析式是( )
B.uB=220sin(100πt-120°)V,uC=220sin(100πt+120°)V
C.uB=220sin(100πt-90°)V,uC=220sin(100πt+150°)V
D.uB=220/2sin(100πt-120°)V,uC=220/2sin(100πt+120°)V
E.uB=220/2sin(100πt-90°)V,UC=220/2sin(100πt+150°)V
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