Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 22P
The voltage source in Fig. 20.64 delivers 660 VA at 120 V, with a supply current that lags the voltage by a power factor of 0.6.
a. Determine the voltmeter, ammeter, and wattmeter readings.
b. Find the load impedance in rectangular form.
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Q20.
A 230 V, 50 Hz AC supply is applied to a coil of 0.16 H inductance and 6.5 Q resistance
connected in series with a capacitor. The power consumed by the circuit is 2.61 KW at
0.566 pf lagging. Estimate the following:
i. Current flowing through the circuit.
i.
Phase angle between current and voltage.
iii.
The value of the capacitor.
Problem 4
An electric saw, a wood shaper, and a motor load of a workshop establish a 18 kVA power demand at 0.5
power factor lagging on a 208 V, 60 Hz supply.
a) Establish the power triangle for the load.
b) Determine the power-factor capacitor that must be place in parallel with the load to raise the power
factor to 0.9 lagging.
c) Determine the change in supply current from the uncompensated to the compensated system.
d) Determine the power-factor capacitor that must be placed in parallel with the load to raise the power
factor to unity.
For the network of Fig. 20.56:
a. Find Is.
b. Find the average power delivered to each element.
c. Find the reactive power for each element.
d. Find the apparent power for each element.
e. Find PT, QT, ST, and Fp for the system.
f. Sketch the power triangle.
Please answer all subpart either 100% dislike is ready please all subpart in short and clear handwriting or typing
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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