Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Chapter 12, Problem 21P
Note how closely the B-H curve of cast steel in Fig. 12.7 matches the curve for the voltage across a capacitor as it charges from zero volts to its final value.
a. Using the equation for the charging voltage as a guide, write an equation for B as a function of
b. Test the resulting equation at
c. Using the equation of part (a). derive an equation for H in terms of
d. Test the resulting equation at
e. Using the result of part (C). perform the analysis of Example 12.1, and compare the results for the current I.
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I. SOLVE THE
FOLLONING PROBLENS :
A COPPER WIRE OF
0,3 Mm RAAUS HAS
A LEN ETH OF
1.
JOM-
IF THE RESISTIVITY of cOpPER IS 1-7 x0
WHAT
WOULD BE THE RESISTANOE OF THE WIRE?
OF A 100m WIRE IS 1035 mm AND
3.7 OHMS. WHAT
2. THE DIAMETER
THE REISTANCE IS
IS THE CONDUCTIVITY
3. WHAT
WILL BE THE VALUE OF A CAPACITOR
WHEN IT HAS A CAPACITIVE REACTANCE OF 300R ANP
to A 6o HZ. SUPPLY?
IN FARADS
IS CONNECTED
4. WHAT Is THE VALUE OF THE RESISTOR WITH THE
FOLLOWING
COLORS ?
A. BROWN, BLACK, GOLD,
REP
B. BLUE YELON BROWN, SILVER
PED, SILVER, BROWN, VIOET
C.
5.
AND t WHEN V
220V AND R= 50n
WHEN I =
45 A
WHEN V = 120V
FIND V
ANO R 80n
AND
AND E= 11A-
Identify the statement from the following when the
inductance can have high value.
a. All the given options
O b. If the number of turns of the wire is more
O c. If the length of the wire is longer
O d. If the cross-sectional area is less
If the input voltage for the given circuit below is 220 V at 50 Hz, the load resistance (RL) is 3300 and the average output voltage is 20
V. Assume the diodes to be germanium diodes. Determine the turns ratio of the transformer used.
If a capacitor of 100 µF is connected parallel to the load resistor (RL), Determine the ripple factor.
D1
D2
V
D3
....
D4
RL
a. The turns ratio of transformer (Npri/Nsec) is
b. The Ripple factor is
cell
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Chapter 12 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 12 - Using Appendix E, fill in the blanks in the...Ch. 12 - Repeat Problem 1 for the following table if...Ch. 12 - For the electromagnet in Fig. 12.34 a. Find the...Ch. 12 - Which section of Fig. 12.35-(a), (b), or (c)-has...Ch. 12 - Find the reluctance of a magnetic circuit if a...Ch. 12 - Prob. 6PCh. 12 - Find the magnetizing force H for Problem 5 in SI...Ch. 12 - If a magnetizing force H of 600 At/m is applied to...Ch. 12 - For the series magnetic circuit in Fig. 12.36,...Ch. 12 - Find the current necessary to establish a flux of...
Ch. 12 - a. Find the number of turns N1 required to...Ch. 12 - a. Find the mmf (NI) required to establish a flux...Ch. 12 - For the series magnetic circuit in Fig.12.40 with...Ch. 12 - a. Find the current I required to establish a flux...Ch. 12 - Prob. 15PCh. 12 - Determine the current I1 required to establsh a...Ch. 12 - a. A flux of 0.210-4Wb will establish sufficient...Ch. 12 - For the series-parallel magnetic circuit in Fig....Ch. 12 - Find the magnetic flux established in the series...Ch. 12 - Prob. 20PCh. 12 - Note how closely the B-H curve of cast steel in...
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