Laboratory Manual for Introductory Circuit Analysis
13th Edition
ISBN: 9780133923780
Author: Robert L. Boylestad, Gabriel Kousourou
Publisher: PEARSON
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Question
Chapter 25, Problem 7P
To determine
(a)
The value of period of the waveform.
To determine
(b)
The value of frequency of the pulse waveform.
To determine
(c)
The value of maximum and minimum amplitude.
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The short-circuit test has been carried out on a single-phase transformer of 2500kVA,50kV/10kV, with the following results: 4000V, 50A , 50000 WIt is known that the transformer has a vacuum current equal to 2% and its efficiency at full load fp=1 is 97.5%.
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Magnetic Field Analysis of a Helical Coil
In this lab you will analyse the inductive coil structure shown in Figure 1. It comprises a solid
round copper wire of radius a = 0.8mm, wound into a cylindrical spiral having N = 20 turns, major
radius R = 10mm and an axial pitch p = 2mm. The coil is excited by a dc current of 1A.
R
P
1
(a) Analytic Calculations
Figure 1: Helical Air-cored Coil
Using the expressions developed in the class, estimate the magnetic flux density B at the centre of
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HONI
B
l
As we saw in the class (see section 4) a modified expression can also be derived that eliminates
the need for the 'long' solenoid assumption:
R
α1
Р
â
B =
HONI
2l
(cosa₂-cosα1)
1
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Chapter 25 Solutions
Laboratory Manual for Introductory Circuit Analysis
Ch. 25 - Determine the following for the pulse waveforms of...Ch. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Sketch a pulse waveform that has a base-line...Ch. 25 - Prob. 6PCh. 25 - Prob. 7PCh. 25 - Prob. 8PCh. 25 - Prob. 9PCh. 25 - Prob. 10P
Ch. 25 - Prob. 11PCh. 25 - Prob. 12PCh. 25 - Prob. 13PCh. 25 - Prob. 14PCh. 25 - Prob. 15PCh. 25 - The capacitor in Fig. 25.57 is initially charged...Ch. 25 - For the input voltag Uc appearing in Fig. 25.58,...Ch. 25 - The switch in Fig. 25.59 is in position 1 until...Ch. 25 - Sketch the waveform for ic for Problem 18,Ch. 25 - Sketch the voltage Uc for the network in Fig....Ch. 25 - Sketch the current ic for each frequency in...Ch. 25 - Prob. 22PCh. 25 - Prob. 23PCh. 25 - Prob. 24PCh. 25 - Prob. 25PCh. 25 - Prob. 26PCh. 25 - Prob. 27PCh. 25 - Prob. 28PCh. 25 - Prob. 29PCh. 25 - Place a capacitor in parallel with Rp in Fig....
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