Question

4) Find the Thevenin equivalent circuit between nodes A & B for the circuit shown in Figure 4. Build the circuit in MultiSim and use its ohmmeter (choose the “Multimeter” tool and set it to measure resistance) to verify the Thevenin equivalent resistance between A & B.

5000 500S B0 SOOL mo = Figure 4: Circuit for Exercise 4

Answer 1

soon b 1L W TA H soo 2x u soo soon Š The wode 'a' has Voltage = x The code 'b' has voltage = v Apply nodal at node a 2-1 + 8 + 9 + 2 Ix = 0 -0 500 500 500 In = a - 500 52. 500 x= ☺ Apply nodal at wode 'b' H oo soo * šoo 4 š t šo I co wsing equation ® 2500 500 - S

- Gv : T 2500 v=2500 I Compare it with equation w=IRtut Vrh. where, Rth = Thevenin's Resistance Vth = Ikeveuin's Jourage & Uth=ov Rth = 277-788 Thevenin's equivalent cicuit - Rth toA Vrh