Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 32P
The Hay bridge in Fig. 18.90 is balanced. Using Eq. (18.3), determine the unknown inductance Lx and resistance Rx.
Fig. 18.90
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Find Laplace transform and the corresponding ROC for
x(t) = e−3sin(2t) u(t)dt
Three similar coils, connected in star, take a total
power of 1.5 kW, at a power factor of 0.2, from a
three-phase, 400 V, 50 Hz supply. Calculate: (a) the
resistance and inductance of each coil; (b) the line
currents if one of the coils is short-circuited.
(a) Three 20 µF capacitors are star-connected across
a 400 V, 50 Hz, three-phase, three-wire supply.
Calculate the current in each line. (b) If one of the
capacitors is short-circuited, calculate the line cur
rents. (c) If one of the capacitors is open-circuited,
calculate: the line currents and the p.d. across each
of the other two capacitors.
ANS:
1.525 A; 2.64 A, 2.64 A, 4.57 A; 1.32 A, 1.32 A, 0;
210 V
Chapter 18 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 18 - Discuss, in your own words, the difference between...Ch. 18 - Convert the voltage source in Fig. 18.62 to a...Ch. 18 - Convert the current source in Fig. 18.63 to a...Ch. 18 - Convert the votage source in Fig. 18.64(a) to a...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equtions for the network of Fig....
Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Using mesh analysis, determine the current IL (in...Ch. 18 - Using mesh analysis, determine the current IL (in...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Write the mesh equations for the network of...Ch. 18 - Write the mesh equations for the network of Fig....Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal votas for the network of Fig....Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Write the nodal equations for the network in Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - Write the nodal equations for the network of Fig....Ch. 18 - For the network of Fig. 18.87, determine the...Ch. 18 - For the bridge network in Fig. 18.88: Fig. 18.88...Ch. 18 - For the bridge network in Fig. 18.89: a. Is the...Ch. 18 - The Hay bridge in Fig. 18.90 is balanced. Using...Ch. 18 - Determine whether the Maxwell bridge in Fig. 18.91...Ch. 18 - Derive the balance equations (18.16) and (18.17)...Ch. 18 - Determine the balance equations for the inductance...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Using the -YorY-conversion, determine the current...Ch. 18 - Determine the mesh currents for the network of...Ch. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Prob. 43PCh. 18 - Prob. 44PCh. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...Ch. 18 - Prob. 47PCh. 18 - Determine the nodal voltages for the network of...Ch. 18 - Determine the nodal voltages for the network of...
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