Q2. The switch in the circuit shown in Figure 3 has been closed for a very long time and isopened at t=0.(a) Calculate the initial value of i.(b) Calculate the initial energy stored in the inductor.(c) What is the time constant of the circuit for t > 0?(d) What is the numerical expression for i(t) for t > 0?(e) What percentage of the initial energy stored has been dissipated in the 22 resistor 5 msafter the switch has been opened?t=030300{8 mH 20120 VFigure 3

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Q2. The switch in the circuit shown in Figure 3 has been closed for a very long time and is opened at t=0. (a) Calculate the initial value of i. (b) Calculate the initial energy stored in the inductor. (c) What is the time constant of the circuit for t > 0?

Q2. The switch in the circuit shown in Figure 3 has been closed for a very long time and is opened at t=0. (a) Calculate the initial value of i. (b) Calculate the initial energy stored in the inductor. (c) What is the time constant of the circuit for t > 0?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

Q2. The switch in the circuit shown in Figure 3 has been closed for a very long time and is
opened at t=0.
(a) Calculate the initial value of i.
(b) Calculate the initial energy stored in the inductor.
(c) What is the time constant of the circuit for t > 0?
(d) What is the numerical expression for i(t) for t > 0?
(e) What percentage of the initial energy stored has been dissipated in the 22 resistor 5 ms
after the switch has been opened?
t=0
30
300
{8 mH 20
120 V
Figure 3

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