A、eC=eA-eB B、eA+eB+eC=0 C、eA+eB+eC≠0 D、eA=eB+eC
A.0.0314亨 B.15.7亨 C.31.4歐姆 D.47.1歐姆
A.i=Imsin(t+180°) B.i=Imsin(t-180°) C.i=Imsin(t+90°) D.i=Imsin(t-90°)