Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Textbook Question
Chapter 8, Problem 8.20P
Find H in a material where (a) fir = 4.2, there are 2.7 * 1029 atoms/m3 and each atom has a dipole moment of 2.6 x 10-30ay A. m2; (b) M = 270az A/m and // = 2 /;H/m; (c) ^M = 0.7 and B = 2a7 T. (d) Find M in a material where bound surface current densities of 12az A/m and -9az A/m exist at P = 0.3 m and 0.4 m, respectively.
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Questions:
Q1: Verify that the average power generated equals the average power
absorbed using the simulated values in Table 7-2.
Q2: Verify that the reactive power generated equals the reactive power
absorbed using the simulated values in Table 7-2.
Q3: Why it is important to correct the power factor of a load?
Q4: Find the ideal value of the capacitor theoretically that will result in unity
power factor.
Vs pp (V)
VRIPP (V) VRLC PP (V)
AT (μs)
T (us)
8°
pf
Simulated
14
8.523
7.84
84.850
1000
29.88
0.866
Measured
14
8.523
7.854
82.94
1000
29.85
0.86733
Table 7-2 Power Calculations
Pvs (mW) Qvs (mVAR) PRI (MW) Pay (mW)
Qt (mVAR)
Qc (mYAR)
Simulated
-12.93
-7.428
9.081
3.855
12.27
-4.84
Calculated
-12.936
-7.434
9.083
3.856
12.32
-4.85
Part II: Power Factor Correction
Table 7-3 Power Factor Correction
AT (us)
0°
pf
Simulated
0
0
1
Measured
0
0
1
Questions:
Q1: Verify that the average power generated equals the average power
absorbed using the simulated values in Table 7-2.
Q2: Verify that the reactive power generated equals the reactive power
absorbed using the simulated values in Table 7-2.
Q3: Why it is important to correct the power factor of a load?
Q4: Find the ideal value of the capacitor theoretically that will result in unity
power factor.
Vs pp (V)
VRIPP (V) VRLC PP (V)
AT (μs)
T (us)
8°
pf
Simulated
14
8.523
7.84
84.850
1000
29.88
0.866
Measured
14
8.523
7.854
82.94
1000
29.85
0.86733
Table 7-2 Power Calculations
Pvs (mW) Qvs (mVAR) PRI (MW) Pay (mW)
Qt (mVAR)
Qc (mYAR)
Simulated
-12.93
-7.428
9.081
3.855
12.27
-4.84
Calculated
-12.936
-7.434
9.083
3.856
12.32
-4.85
Part II: Power Factor Correction
Table 7-3 Power Factor Correction
AT (us)
0°
pf
Simulated
0
0
1
Measured
0
0
1
electric plants.
Prepare the load schedule
Chapter 8 Solutions
Engineering Electromagnetics
Ch. 8 - A point charge, Q = - 0.3 /C and m = 3 Ă— -10-16...Ch. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Show that a charged particle in a uniform magnetic...Ch. 8 - Prob. 8.5PCh. 8 - Show that the differential work in moving a...Ch. 8 - A conducting strip of infinite length lies in the...Ch. 8 - Two conducting strips, having infinite length in...Ch. 8 - A current of-100az A/m flows on the conducting...Ch. 8 - A planar transmission line consists of two...
Ch. 8 - Prob. 8.11PCh. 8 - Two circular wire rings are parallel to each...Ch. 8 - An infinitely long current filament is oriented...Ch. 8 - A solenoid is 25 era long, 3 cm in diameter, and...Ch. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - Prob. 8.17PCh. 8 - Prob. 8.18PCh. 8 - Given a material for which ℵK = 3.1 and within...Ch. 8 - Find H in a material where (a) fir = 4.2, there...Ch. 8 - Prob. 8.21PCh. 8 - Prob. 8.22PCh. 8 - Calculate values for HO,B0, and M0 at p = c for a...Ch. 8 - Two current sheets, K0,ay, A/m at z = 0 and -K0,ay...Ch. 8 - Prob. 8.25PCh. 8 - Prob. 8.26PCh. 8 - Let đ�œ‡rj = 2 in region 1, defined by 2x + 3y —...Ch. 8 - For values of B below the knee on the...Ch. 8 - Prob. 8.29PCh. 8 - Prob. 8.30PCh. 8 - A toroid is constructed of a magnetic material...Ch. 8 - Prob. 8.32PCh. 8 - Prob. 8.33PCh. 8 - Determine the energy stored per unit length in the...Ch. 8 - Prob. 8.35PCh. 8 - Prob. 8.36PCh. 8 - A Toroid has known, reluctance R. Two windings...Ch. 8 - Prob. 8.38PCh. 8 - Conducting planes in air at Z = 0 and z = d carry...Ch. 8 - Prob. 8.40PCh. 8 - Prob. 8.41PCh. 8 - Find the mutual inductance between two filaments...Ch. 8 - Prob. 8.43PCh. 8 - Prob. 8.44PCh. 8 - Beginning with the definition, of the scalar...
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