Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
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Chapter 18, Problem 40P
To determine
Find the value of current
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18.7 Select the values of R₁, R2, and R3 in the circuit in
, h12 = 0.8,
Fig. P18.7 so that h11=4
h21-0.8, and h₂2 = 0.14 S.
Figure P18.7
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HW4C2
*S. Using superposition, determine the current I, for the net-
work of Fig. 18.116 (u = 20; h = 100).
I = 1 mA Z°
R
5 kN
V = 10 VZ0°
R1
20 k2
X
5 k2
FIG. 18.116
19. Determine the Thévenin equivalent circuit for the net-
work extermal to the 4-kl inductive reactance of Fig.
18.124 (in terms of I).
0.2 kl
Th
100I
R1
40 kf2
R2
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4 k2
FIG. 18.124
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Chapter 18 Solutions
Fundamentals of Electric Circuits
Ch. 18.2 - Prob. 1PPCh. 18.2 - Prob. 2PPCh. 18.2 - Prob. 3PPCh. 18.3 - Prob. 5PPCh. 18.3 - Prob. 6PPCh. 18.4 - Prob. 7PPCh. 18.4 - Prob. 8PPCh. 18.5 - (a) Calculate the total energy absorbed by a 1-...Ch. 18.5 - Prob. 10PPCh. 18.8 - If a 2-MHz carrier is modulated by a 4-kHz...
Ch. 18.8 - Prob. 12PPCh. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - The inverse Fourier transform of ej2+j is (a) e2t...Ch. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - A unit step current is applied through a 1-H...Ch. 18 - Prob. 10RQCh. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - Prob. 7PCh. 18 - Prob. 8PCh. 18 - Prob. 9PCh. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 14PCh. 18 - Prob. 15PCh. 18 - Prob. 16PCh. 18 - Prob. 17PCh. 18 - Given that F=Fft, prove the following results,...Ch. 18 - Prob. 19PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - Prob. 23PCh. 18 - Prob. 24PCh. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - Prob. 29PCh. 18 - For a linear system with input x(t) and output...Ch. 18 - Prob. 31PCh. 18 - Prob. 32PCh. 18 - Prob. 33PCh. 18 - Prob. 34PCh. 18 - Prob. 35PCh. 18 - Prob. 36PCh. 18 - Prob. 37PCh. 18 - Prob. 38PCh. 18 - Prob. 39PCh. 18 - Prob. 40PCh. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Prob. 43PCh. 18 - Prob. 44PCh. 18 - Prob. 45PCh. 18 - Prob. 46PCh. 18 - Prob. 47PCh. 18 - Prob. 49PCh. 18 - Prob. 51PCh. 18 - Prob. 52PCh. 18 - Prob. 53PCh. 18 - Prob. 54PCh. 18 - Prob. 55PCh. 18 - Prob. 56PCh. 18 - Prob. 57PCh. 18 - Prob. 58PCh. 18 - Prob. 59PCh. 18 - Prob. 60PCh. 18 - Prob. 61PCh. 18 - Prob. 62PCh. 18 - Prob. 63PCh. 18 - Prob. 64PCh. 18 - Prob. 65PCh. 18 - Prob. 66PCh. 18 - Given a signal g(t) = sinc(200 t), find the...Ch. 18 - Prob. 68CPCh. 18 - Prob. 69CP
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- Th *13. Find the Thévenin equivalent circuit for the portions of the networks in Fig. 18.119 external to the elements between points a and b. E = 50 V 20° FIG. 18.119 Problems 13 and 27. R₁ ell 40 202 80 R₂ www 10 (2 (b) PROBLEMS III XL 60arrow_forward*25. Find the Thévenin equivalent circuit for the network to the left of terminals a-a' of Fig. 18.125. E R 1 k2 SVZ0° Thévenin SI, R1 2 kf2 R3 3.3 kОarrow_forwardThe student engineer of a campus radio station wishes to verify the effectiveness of the lightning rod on the antenna mast (Fig. P18.55). The unknown resistance Rx is between points C and E is a “true ground,” but is inaccessible for direct measurement because the stratum in which it is located is several meters below Earth’s surface. Two identical rods are driven into the ground at A and B , introducing an unknown resistance R y. The procedure for finding the unknown resistance Rx is as follows. Measure resistance R1 between points A and B. with a heavy conducting wire and measure resistance R2 between points A and C. (a) Derive a formula for Rx in terms of the observable resistances R1 and R2 . (b) A satisfactory ground resistance would be Rx < 2.0 Ω. Is the grounding of the station adequate if measurements give R1 = 13 Ω and R2 = 6.0 Ω?arrow_forward
- 53. ●•● In the circuit shown in Figure 18.45, the potential differ- ence across ab is +24.0 V. Calculate (a) the charge on each capacitor and (b) the potential difference across each capacitor. 3.00 μF a 5.00 μF b 6.00 μF FIGURE 18.45 Problem 53.arrow_forward*8. Using superposition, determine the current I, for the net- work of Fig. 18.116 (µ = 20; h = 100). I = 1 mA Z 0° R2 5 kN IL V = 10 VZ 0° hI R1 20 kn 5 k2 FIG. 18.116 llarrow_forwardHW4C2 *8. Using superposition, determine the current Iz for the net- work of Fig. 18.116 ( = 20; h = 100). I = 1 ma Z0 R2 S kn V = 10VZ0 hI 20 kf X s kn R FIG. 18.116 10-arrow_forward
- EXAMPLE 18.4 For the network in Fig. 18.12, determine the sinu- soidal expression for the voltage v, using superposition. E, = 12 V R:I k R1 0.5 kf 2 kfl E, = 4 V 20 Xc 10 kf R, 33 kl v, FIG. 18.12 Example 18.4.arrow_forward. Find the Thévenin equivalent circuit for the portions of the networks in Fig. 18.119 external to the elements between points a and b. E = 50 V 20° ( +1₁ R₁, 402 202 8 Ω R₂ www 10x₁ XL ell (b) XC. 木 a 60arrow_forward4. Using superposition, find the sinusoidal expression for the voltage vc for the network of Fig. 18.112. R1 R2 12 V 6Ω 3Ω I 4 A Z0° Xc 1N vC FIG. 18.112arrow_forward
- Figure 18.163: Accumulation of charge of a capacitor. Exercise 02 Show that the displacement current through a parallel-plate capacitor can be written as Ip = C where V is the voltage across the capacitor at any instant.arrow_forwardUsing super position find Vs, please elaborate your steps please answer in typing format 11. Find the voltage V, for the network in Fig. 18.117. 100 R₂ 20 10V20 FIG. 18.117 Problem 11. SAZOVarrow_forwardHW4C2 4. Using superposition, find the sinusoidal expression for the voltage vc for the network of Fig. 18.112. R1 R2 12 V 3Ω 4 A Z0° 10 vC FIG. 18.112arrow_forward
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