Question

State the elements that constitute a supermesh in the circuit in (b) Figure 2(b). (5 marks) Use mesh analysis to determine is, iz and ib in Figure 2(b). (i) 20 20 w 40 3 A 6 V 8 Q Figure 2(b) (30 marks) ...4 EEU 104 (c) Draw the Thevenin equivalent circuit for the circuit to the left of the terminals a-b as shown in Figure 2(c). 4 0 10 a 32 Vl 2 A 12 Q R, b Figure 2(c)

Answer 1

Ansuen 2 2 2 2 6v 3A 8 2 mesh Ci supenmesh and mesh is con ncta Sgunce because current 3A betaueen them- 3 So su pen mesh. Solving Now 2 (I-T3)- + (T2-T) - 6 I 2 I, 12 I, 3

Alyng mesh anakysis mesh Cii 2 (I3-I) CT3-T2 2T3 8 T3 2 T 8T3 2 T I, fom ean 3 + I2 valu o T,- 3+T2 futhing ean eni) and I2) - 3 T3 3+ - 3 T3 O 212-3 3 I2 + 3 I 2 3 - (iv) and (V- Solung egn 0.43G8 A lo5 2 3 A I3

3+T2 So A 3-4368 (i) Calculation o thuhvo1 tage (Vth) - Vin 12 2 A 32 V Appyng nodl angysis at hode Vn Vth 32 2 Vm 32 2+ Vm 30 V

Calula ton of Rim- Ustag Replaug opan sounce ciTuu uroent and ww Rm Rn 4x12 3 1 Rn Rin MN RL - 30V he nn's equvaln t ciruut