Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 14P
For the system of Fig. 20.59:
a. Find the total number of watts. volt-amperes reactive, volt-amperes, and Fp.
b. Find the current ls.
c. Draw the power triangle.
d. Find the type of elements and their impedance in ohms within each electrical box. (Assume that all elements of a load are in series.)
e. Verity that the result of part (b) is correct by finding the current ls using only the input voltage E and the results of part (d). Compare the value of ls with that obtained for part (b).
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Students have asked these similar questions
An alternating voltage of 110 volts is applied to a circuit with resistance of 8.66 Ohms,
inductance of 0.106 Henries, and capacitance of 75.8 microFarads. The frequency of
the voltage is 50 Hz. Determine:
a. The current in the circuit and its phase angle relative to the applied voltage.
b. The voltage drop across each component of the circuit.
c. The active and reactive power inputs to the circuit.
d. Draw (Not hand-sketch) the equivalent power triangle.
e. Is the RLC load of the circuit inductive or capacitive? Why?
1. A 6 ampere supply has a frequency of 25 Hz. Find the instantaneous value of current
a. at 0.00530 sec from zero going to the positive direction.
b. at 0.00530 sec from zero going to the negative direction.
c. at 530 degrees.
plase answer five a quesion option corrctly
9.In AC circuits, power consumed is
A.it depends on the supply voltage
B.product of voltage and current
C.it depends on the power factor (p.f.) of the circuit in addition to voltage and current
D.it depends on the magnitude of the circuit current
10A potential transformer is a
A.transformer used with an AC ammeter
B.transformer used with an AC voltmeter
C.transformer used with a DC voltmeter
D.transformer used with a DC ammeter
11. Define Per Unit Quantity
A/ Xp.u = x base / x actual per unit
B/ Xp.u = X actual / x base per unit
C/ Xp.u = x actual / x unit per unit
12./
VS= 1200<0º V
ZL= 50 + j60 ohm
ZS= j25ohm
By taking Zbase = 100 ohm, find Vs (p.u), Zs(p.u), ZL(p.u)
A.
Vs (p.u) = 1 < 00 p.u
Zs(p.u) = j0.20 p.u
ZL(p.u) = 66.42<390 p.u
B.
Vs (p.u) = 1 < 00 p.u
Zs(p.u) = j0.25 p.u
ZL(p.u) = 42.96<730 p.
C.
Vs (p.u) = 1 < 00 p.u
Zs(p.u) = j0.25 p.u
ZL(p.u) = 0.781<50.20 p.u
13. Which of…
Chapter 20 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 20 - For the battery of bulbs (purely resistive)...Ch. 20 - For the network of Fig. 20.49 : a. Find the...Ch. 20 - For the network of Fig. 20.50 : a. Determine the...Ch. 20 - For the system of Fig. 20.51 : a. Find the total...Ch. 20 - For the system of Fig. 20.52 : a. Find PT, QT. and...Ch. 20 - 6. For the system of Fig. 20.53 : a. Find PT, QT....Ch. 20 - For the network of Fig. 20.54 : a. Find the type...Ch. 20 - For the circuit of Fig. 20.55: a. Find the...Ch. 20 - For the network of Fig. 20.56 : a. Find Is. b....Ch. 20 - Repeat Problem 9 for the network of Fig. 20.57.
Ch. 20 - For the network of Fig. 20.58: a. Find the average...Ch. 20 - An electrical system is rated 10 kVA, 200 V at a...Ch. 20 - An electrical system is rated 5 kVA, 120 V, at a...Ch. 20 - For the system of Fig. 20.59: a. Find the total...Ch. 20 - Repeat Problem 14 for the system of Fig. 20.60.Ch. 20 - For the circuit of Fig. 20.61: Find the total...Ch. 20 - For the circuit of Fig. 20.62: Find the total...Ch. 20 - Prob. 18PCh. 20 - The load on a 120 V, 60 Hz supply is 5 kW...Ch. 20 - The loading of a factory on a 1000 V, 60 Hz system...Ch. 20 - a. A wattmeter is connected with its current coil...Ch. 20 - The voltage source in Fig. 20.64 delivers 660 VA...Ch. 20 - a. An air-core coil is connected to a 200 V, 60 Hz...Ch. 20 - a. The inductance of an air-core coil is 0.08 H....Ch. 20 - Using PSpice or Multisim, obtain a plot of...
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