只求一个未知数用戴维南定理方便些，只是交流电用复数计算麻烦。Uab' = (0.5 - 3 / (2 + 3 - j5)) * 10∠0° ；Uab‘ ，开路电压Rab = 5/2 + 3 * (2 - j5) / (2 + 3 - j5)I = Uab' / (Rab + 2 + j2)Uab = I * (2 + j2)
