11.v1(t)=100c??(377t−30°),v2(t)=100sin(60°−377?),求v1(t)與v2(t)之間的相位關係?
(A)v2(t)領先v1(t)60°
(B)v1(t)領先v2(t)60°
(C)v2(t)滯後v1(t)60°
(D)v2(t)領先v1(t)30°
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統計: A(21), B(22), C(12), D(9), E(0) #3406335
統計: A(21), B(22), C(12), D(9), E(0) #3406335