In the circuit of Fig. 1-26, let R1 = R2 = Rc = 12 and find the Thvenin equivalent for the circuit to the right of terminals a, b (a) if ve = 0.5i, and (b) if ve = 0.5iz. Ans. (a) VTh = 0, ZTh = RTh = 1.75 2; %3D (b) VTh = 0, Z Th = RTh = 1.667 2 R i RC R2 b. Fig. 1-26