Answered: Consider the large inductor in Figure 3…

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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Consider the large inductor in Figure 3 with given number of turns N, core permeability μ, core cross section area A, and core diameter are given. Note that the core length l is equal to π times the core diameter. Answer the questions and pick an answer from the given choices.

As a consequence, the practical inductor above can be represented by it inductance L in series with the resistance of the coil R (calculated above). Let this equivalent R-L circuit be connected to a 12 V source that has an internal resistance of 0.5 Ω as shown on the right hand side of Figure 3. Let switch SW₂ be in the open position, while SW₁ closed at t = 0. Nearly how long will it take the inductor to fully charge (i.e., reach steady-state)?

1) 1.5 sec

2) 100 msec

3) 18.5 min

4) 37 sec

Sw2
SW, m
H = 0.01 H/m
N = 100
50 cm
R.
12V
Core Area: 0.06 m?
#0.5
Figure 3 (Problem 3)

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