将电压源和1Ω电阻等效至次级;
E = 100 * 1/0.1 = 1000∠0° v,r = 1 * (1/0.1)^2 = 100Ω;
次级回路阻抗 z = 100 + 100 + j200 = 200√2∠45° Ω;
次级电流 i2 = E/z = 1000∠0°/( 200√2∠45° ) = 5√2/2 ∠-45° A;
i1 = i2/0.1 = 25√2∠-45° A;
U = 100 * i2 = 100 * 5√2/2 ∠-45° = 250√2∠-45° v 。
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