电路分析基础题目,过程也要!!
1)
开路电压:Uoc = Uab = Uac + Ucb;
Uac =Is*R3, Ucb = Us*R2/(R1+R2);
等效电阻:Ro = R3 + R1//R2;
2)
Ib = Us/Rb; Uab = -30*Ib*Rc;
开路电压: Uoc = Uab;
等效电阻:Ro = Rc;