EBK FUNDAMENTALS OF ELECTRIC CIRCUITS
6th Edition
ISBN: 8220102801448
Author: Alexander
Publisher: YUZU
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Question
Chapter 15, Problem 18P
(a)
To determine
Find the Laplace transform of the non-periodic function
(b)
To determine
Find the Laplace transform of the non-periodic function
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1) Compute the voltages at each receiver branch (Vo ad V₁ see block diagram next page) for each of
the possible transmitted signals:
Transmitted signals are generated as shown below:
Binary wave in
unipolar form
(a)
With basis functions:
Inverter
41(t)
Product
modulator
Product
modulator
42(t)
BFSK
+
signal
+
Si(t)
P1(t)=
√Eb
=
cos (2лfit+0₁)
$2(t)
42(t)=
√Eb
层
cos (2лf2t+
t+02)
Generating signals:
2E
Si(t)
cos (2лfit+0₁), bit=0
Ть
SBFSK (t)
2E
|$2(t)=
cos (2лf2t+02), bit=1
Find the disruptive voltage and visual corona voltage for 3-phase line consisting of 2.5 cm diameter conductor
spaced equilateral triangular formation of 4 m. The following data can be assumed, temperature 25°c, pressure
73 cm of mercury, surface factor 0.84, irregularity factor 0.72.
A 3-phase, 4-wire distributor supplies a balanced voltage of 400/230 V to a load consisting of 8 A at p.f. 0-7
lagging for R-phase, 10 A at p.f. 0-8 leading for Y phase and 12 A at unity p.f. for B phase. The resistance
of each line conductor is 0.4 2. The reactance of neutral is 0.2 2. Calculate the neutral current, the suppl
voltage for R phase and draw the phasor diagram. The phase sequence is RYB.
VR
Phasor diagram
Chapter 15 Solutions
EBK FUNDAMENTALS OF ELECTRIC CIRCUITS
Ch. 15.2 - Prob. 1PPCh. 15.2 - Prob. 2PPCh. 15.3 - Prob. 3PPCh. 15.3 - Prob. 4PPCh. 15.3 - Prob. 5PPCh. 15.3 - Prob. 6PPCh. 15.3 - Obtain the initial and the final values of...Ch. 15.4 - Prob. 8PPCh. 15.4 - Find f(t) if F(s)=48(s+2)(s+1)(s+3)(s+4)Ch. 15.4 - Obtain g(t) if G(s)=s3+2s+6s(s+1)2(s+3)
Ch. 15.4 - Find g(t) given that G(s)=20(s+1)(s2+4s+13)Ch. 15.5 - Graphically convolve the two functions in Fig....Ch. 15.5 - Given g(t) and f(t) in Fig. 15.20, graphically...Ch. 15.5 - Use convolution to find vo(t) in the circuit of...Ch. 15.6 - Prob. 15PPCh. 15.6 - Prob. 16PPCh. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQCh. 15 - If F(s) = 1/(s + 2), then f(t) is (a) e2t u(t) (b)...Ch. 15 - Prob. 7RQCh. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Find F(s) if: (a) ft=6etcosh2t (b) ft=3te2tsinh4t...Ch. 15 - If g(t) = 4e 2t cos 4t, find G(s).Ch. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Design a problem to help other students better...Ch. 15 - Let F(s)=18(s+1)(s+2)(s+3) (a) Use the initial and...Ch. 15 - Determine the initial and final values of f(t), if...Ch. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - Find f(t) for each F(s): (a) 10ss+1s+2s+3 (b)...Ch. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Obtain f(t) for the following transforms: (a)...Ch. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Determine f(t) if: (a)...Ch. 15 - Show that...Ch. 15 - Prob. 41PCh. 15 - Design a problem to help other students better...Ch. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Given h(t) = 4e2tu(t) and x(t) = (t) 2e 2tu(t),...Ch. 15 - Given the following functions...Ch. 15 - A system has the transfer function...Ch. 15 - Find f(t) using convolution given that: (a)...Ch. 15 - Prob. 49PCh. 15 - Prob. 50PCh. 15 - Given that v(0) = 5 and dv(0)/dt = 10, solve...Ch. 15 - Prob. 52PCh. 15 - Prob. 53PCh. 15 - Design a problem to help other students better...Ch. 15 - Prob. 55PCh. 15 - Solve for v(t) in the integrodifferential equation...Ch. 15 - Prob. 57PCh. 15 - Given that dvdt+2v+50tv()d=4u(t) with v(0) = 1,...Ch. 15 - Solve the integrodifferential equation...Ch. 15 - Prob. 60P
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- The three line leads of a 400/230 V, 3-phase, 4-wire supply are designated as R, Y and B respectively. The fourth wire or neutral wire is designated as N. The phase sequence is RYB. Compute the currents in the four wire when the following loads are connected to this supply: From R to N: 25 kW, unity power facto. From Y to N: 20 kVA, 0-7 lag. From B to N: 30 kVA, 0-6 lead.arrow_forward2) Is the following set of basis functions orthogonal? 41(t) = √== cos (2Ãfet), 0 ≤1≤T₁ P2(t)= - \ con(A). 2 VTS sin (2лfet), 0arrow_forwardPick up the correct answer It must be accurate 2. the minimum phase-neutral voltage at which corona occurs is A. Visual critical voltage B. Receiving voltage C. String voltage D. Critical disruptive voltage. 3. If the length of a transmission line increases, its inductance is A. Increases B. Decreases C. Constant 4. Photo cells are connected in parallel in order to A. Increase voltage rating D. None of them B. Increase current rating C. Increase life cells. D. All of the them 6. Best diversity factor will be at: B. More D. diversity factor >1 than sending voltage A. diversity factor <1 B. diversity factor = 1 C. diversity factor = zero 7. When the voltage regulation is positive, then receiving voltage is A. Less C. Equal D. None of the them 8. Fill factor of solar cell using the data: Pmax= 10 w, Voc= 5 V, Isc= 1 A A.5 9. The string efficiency can be reduced by using: B. 2 C. 1 D. 10 A. Guard ring B. Equal insulator voltage C. less cross arm D. None of them 10. If the spacing between…arrow_forwardDon't use ai to answer I will report you answerarrow_forwardPick up the correct answer along with evde ce for explanation 2. Taking into account cost, most of the high-voltage transmission lines are A. Underground. B. Overhead C. Either of the above D. None of the aber 3. If the maximum load is equal to plant capacity. The plant capacity factor is: A. 1 B. zero C. >1 D. <1 5. Sum of continuous ratings of all the equipment connected to electric power system is defined as: A. Maximum demand B. Connected load 6. Cables have more effective in B. Capacitance C. Daily average load than over head transmission lines C. Resistance D. Load variation D. All of the abov 100% A. Inductance 7. By which of the following methods string efficiency can be equal A. Using a guard ring B. Equal insulator voltage C. Using long cross arm D. Non of them -10. If the spacing between the conductors is decrease, the inductance of the line will be: A. Increase B. decreases C. Not effected D. Non of them 12. If the length of a transmission line increases, its inductance is…arrow_forwardDon't use ai to answer I will report you answer Use the method of superposition to find...arrow_forwardDon't use ai to answer I will report you answerarrow_forwardDon't use ai to answer I will report you answerarrow_forwardQ1: What is the orientation of voltage regulation value (positive or negative) of alternator loaded by capacitive load? Explain the effect of armature reaction on voltage regulation for this load? Draw the load characteristics of alternator for capacitive, inductive, and inductive loads?arrow_forwardI what happend if can IY = 125 lead, IB = 125 unity IR=89.91 unity IB = 125-> Lag 0.8 Iy=125 IB 36.86 lag 0.8 Ir< 36-86 IN=IR+IN+IB FR 89.910+125<-120-36.86+1252+120 -36.86arrow_forwardManual solution only, no Al usedarrow_forwardLook up the dislocation-induced energy levels in silicon and GaAs - cite your sources. a. Sketch them in the band gap. b. When are each of them most active? c. Are dislocations more detrimental in Si or GaAs? d. What is the threshold of dislocation density that each semiconductor can handle?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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