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In the circuit shown in Fig. 7.8, the initial currents in inductors L₁ and L₂ have been established by sources not shown. The switch is opened at t = 0. a) Find 1₁, 12, and i3 for t≥ 0. b) Calculate the initial energy stored in the parallel inductors. c) Determine how much energy is stored in the inductors as t→∞. d) Show that the total energy delivered to the resis- tive network equals the difference between the results obtained in (b) and (c). 8 A 3 4 A 3L₁ (5H) 3L₂ (20 H). Figure 7.8 A t = 0 4Ω de v(t) : 40 Ω {15 Ω 100

In the circuit shown in Fig. 7.8, the initial currents in inductors L₁ and L₂ have been established by sources not shown. The switch is opened at t = 0. a) Find 1₁, 12, and i3 for t≥ 0. b) Calculate the initial energy stored in the parallel inductors. c) Determine how much energy is stored in the inductors as t→∞. d) Show that the total energy delivered to the resis- tive network equals the difference between the results obtained in (b) and (c). 8 A 3 4 A 3L₁ (5H) 3L₂ (20 H). Figure 7.8 A t = 0 4Ω de v(t) : 40 Ω {15 Ω 100

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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In the circuit shown in Fig. 7.8, the initial currents in inductors L₁ and L₂ have been established by sources not shown. The switch is opened at t = 0. a) Find i₁, i2, and is for t≥ 0. b) Calculate the initial energy stored in the parallel inductors. c) Determine how much energy is stored in the inductors as t→→∞. d) Show that the total energy delivered to the resis- tive network equals the difference between the results obtained in (b) and (c). 8 A L₁ (5H) L₂ (20 H). Figure 7.8 A t = 0 v(t) Σ 4 Ω : 40 Ω Ω {15 Ω 100
Transcribed Image Text:In the circuit shown in Fig. 7.8, the initial currents in inductors L₁ and L₂ have been established by sources not shown. The switch is opened at t = 0. a) Find i₁, i2, and is for t≥ 0. b) Calculate the initial energy stored in the parallel inductors. c) Determine how much energy is stored in the inductors as t→→∞. d) Show that the total energy delivered to the resis- tive network equals the difference between the results obtained in (b) and (c). 8 A L₁ (5H) L₂ (20 H). Figure 7.8 A t = 0 v(t) Σ 4 Ω : 40 Ω Ω {15 Ω 100
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