Answered: The switch in Fig. P7.65 has been…

The switch in Fig. P7.65 has been position a for a long time. At t = 0, it moves instantaneously to position b. For t20+, find i.(t), v¡(t), v2(t), Vo(t). %3D

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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Concept explainers

Sinusoids And Phasors

Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.

Circuit Theory

Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).

Question

3. The switch in Fig. P7.65 has been position a for a long time. At t = 0, it moves
instantaneously to position b. For t20+, find i.(t), v1(t), v2(t), Vo(t).
2 kN
7.5 kN
t = 0
+
+
50 V
0.3 µF
V1
100 V
+
Vo
0.9 µF -
V2

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There is no energy stored in the circuit of at the time the switch is closed.1. a) Find io(t) for t≥0.2. b) Find vo(t) for t≥0+.3. c) Find i1(t) for t≥0.4. d) Find i2(t) for t≥0.5. e) Do your answers make sense in terms of known circuit behavior?
7.76 There is no energy stored in the capacitor in the PSPICE circuit in Fig. P7.76 when switch 1 closes at t = 0. MULTISIM Switch 2 closes 10 microseconds later. Find v.(t) for %3D t2 0. Figure P7.76 16 k2 1 = 0 t = 10 us 20 nF 5 mA 4 k2 30 V
7.72 In the circuit in Fig. P7.72, switch A has been open PSPICE and switch B has been closed for a long time. At MULTISIM I = 0, switch A closes. Five seconds after switch A closes, switch B opens. Find i (1) for t 2 0. %3D Figure P7.72 50 t = 5s- iL(1) В 10 V A 5 H t =0
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