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7. In Fig. 2.41, the potential of point A is –30 V. Using Kirchhoff's voltage law, find (a) value of V and (b) power dissipated by 5 Qresistance. All resistances are in ohms. [100 V; 500 W]

7. In Fig. 2.41, the potential of point A is –30 V. Using Kirchhoff's voltage law, find (a) value of V and (b) power dissipated by 5 Qresistance. All resistances are in ohms. [100 V; 500 W]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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7. In Fig. 2.41, the potential of point A is –30 V. Using Kirchhoff's voltage law, find (a) value of V and (b) power dissipated by 5 Nresistance. All resistances are in ohms. [100 V; 500 W] 5 + 20 V- 10 30 V 11A 12 60 V 12 -30 v4 ww 8A 4 15 Fig. 2.41 Fig. 2.42 Fig. 2.43 8. Using KVL and KCL, find the values of V and I in Fig. 2.42. All resistances are in ohms. [S0 V; –4 A] 9. Using KCL, find the values V4g, I1. Iz and Iz in the circuit of Fig. 2.43. All resistances are in ohms. [VAB = 12 V ; I, = 2/3 A; I, = 1 A; I, = 4/3 A] 10. A bridge network ABCD is arranged as follows : Resistances between teminals A-B, B-C, C-Đ, D-A, and B-Ð are 10, 20, 15, 5 and 40 ohms respec- tively. A 20 V battery of negligible intemal resistance is connected between terminals A and C. Determine the current in each resistor. LAB = 0.645 A: BC = 0.678 A: AD = 1.025 A: DB = 0.033 A: DC = 0.992 A1 ww ww
Transcribed Image Text:7. In Fig. 2.41, the potential of point A is –30 V. Using Kirchhoff's voltage law, find (a) value of V and (b) power dissipated by 5 Nresistance. All resistances are in ohms. [100 V; 500 W] 5 + 20 V- 10 30 V 11A 12 60 V 12 -30 v4 ww 8A 4 15 Fig. 2.41 Fig. 2.42 Fig. 2.43 8. Using KVL and KCL, find the values of V and I in Fig. 2.42. All resistances are in ohms. [S0 V; –4 A] 9. Using KCL, find the values V4g, I1. Iz and Iz in the circuit of Fig. 2.43. All resistances are in ohms. [VAB = 12 V ; I, = 2/3 A; I, = 1 A; I, = 4/3 A] 10. A bridge network ABCD is arranged as follows : Resistances between teminals A-B, B-C, C-Đ, D-A, and B-Ð are 10, 20, 15, 5 and 40 ohms respec- tively. A 20 V battery of negligible intemal resistance is connected between terminals A and C. Determine the current in each resistor. LAB = 0.645 A: BC = 0.678 A: AD = 1.025 A: DB = 0.033 A: DC = 0.992 A1 ww ww
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