Mastering Engineering with Pearson eTex...7th EditionAllan R. Hambley Publisher: PEARSONISBN: 9780134486970
Mastering Engineering with Pearson eTex...
Solutions for Mastering Engineering with Pearson eText -- Standalone Access Card -- for Electrical Engineering: Principles & Applications
Problem 2.1P:
Reduce each of the networks shown in Figure P2.1 to a single equivalent resistance by combining...Problem 2.2P:
A 4- resistance is in series with the parallel combination of a 20- resistance and an unknown...Problem 2.3P:
Find the equivalent resistance looking into terminals a and b in Figure P2.3. Figure P2.3Problem 2.4P:
Suppose that we need a resistance of 1.5 k and you have a box of 1-k resistors. Devise a network...Problem 2.6P:
Find the equivalent resistance between terminals a and b for each of the networks shown in Figure...Problem 2.8P:
Determine the resistance between terminals a and b for the network shown in Figure P2.8. Repeat...Problem 2.9P:
Two resistances having values of R and 2R are in parallel R and the equivalent resistance are both...Problem 2.10P:
A network connected between terminals a and b consists of two parallel combinations that are in...Problem 2.11P:
Two resistances R1 and R2 are connected in parallel. We know that R1=90 and that the current...Problem 2.12P:
Find the equivalent resistance for the infinite network shown in Figure P2.12(a). Because of its...Problem 2.13P:
If we connect n 1000- resistances in parallel, what value is the equivalent resistance?Problem 2.14P:
The heating element of an electric cook top has two resistive elements. R1=57.6 and R2=115.2 ,...Problem 2.15P:
We are designing an electric space heater to operate from 120V. Two heating elements with...Problem 2.16P:
Sometimes, we can use symmetry considerations to find the resistance of a circuit that cannot be...Problem 2.17P:
The equivalent resistance between terminals a and b in Figure P2.17 is Rab=23 . Determine the value...Problem 2.18P:
Three conductances G1 G2, and G3 are in series. Write an expression for the equivalent conductance...Problem 2.19P:
Most sources of electrical power behave as (approximately) ideal voltage sources In this case, if we...Problem 2.20P:
The resistance for the network shown in Figure P2.20 between terminals a and b with c open circuited...Problem 2.21P:
Often, we encounter delta-connected loads such as that illustrated in Figure P2.21, in three-phase...Problem 2.22P:
What are the steps in solving a circuit by network reduction (series/parallel combinations)? Does...Problem 2.23P:
Find the values of i1 and i2 in Figure P2.23. Figure P2.23Problem 2.24P:
Find the voltages v1 and v2 for the circuit shown in Figure P2.24 by combining resistances in series...Problem 2.25P:
Find the values of v and i in Figure P2.25. Figure P2.25Problem 2.26P:
Consider the circuit shown in Figure P2.24. Suppose that the value of vs is adjusted until v2=5 V....Problem 2.27P:
Find the voltage v and the currents i1 and 12 for the circuit shown in Figure P2.27. Figure P2.27Problem 2.29P:
Find the values of i1 and i2 in Figure P2.29. Figure P2.29Problem 2.30P:
Consider the cirrcuit shown in Figure P2.30 Find the values of v1, v2, and vab. Figure P2.30Problem 2.31P:
Solve for the values of i1, i2, and the powers for the sources in Figure P2.31. Is the current...Problem 2.32P:
The 12-V source in Figure P2.32 is delivering 36 mW of power. All four resistors have the same value...Problem 2.33P:
Refer to the circuit shown in Figure P2.33. With the switch open, we have v2=8 V. On the other hand,...Problem 2.34P:
Find the values of i1 and i2 in Figure P2.34. Find the power for each element in the circuit, and...Problem 2.35P:
Find the values of i1 and i2 in Figure P2.35 Figure P2.35Problem 2.36P:
Use the voltage-division principle to calculate v1, v2, and v3 in Figure P2.36. Figure P2.36Problem 2.37P:
Use the current-division principle to calculate i1 and i2 in Figure P2.37. Figure P2.3Problem 2.39P:
Use the current-division principle to calculate the value of in Figure P2.39. Figure P2.39Problem 2.40P:
Suppose we need to design a voltage-divider circuit to provide an output voltage vo=5 V from a 15-V...Problem 2.41P:
A source supplies 120 V to the series combination of a 10- resistance, a 5- resistance, and an...Problem 2.42P:
We have a 60- resistance, a 20- resistance, and an unknown resistance Rx in parallel with a 15 mA...Problem 2.43P:
A worker is standing on a wet concrete floor, holding an electric drill having a metallic case. The...Problem 2.44P:
Suppose we have a load that absorbs power and requires a current varying between 0 and 50 mA. The...Problem 2.45P:
We have a load resistance of 50 that we wish to supply with 5 V. A 12.6-V voltage source and...Problem 2.46P:
We have a load resistance of 1 k that we wish to supply with 25 mW. A 20-mA current source and...Problem 2.47P:
The circuit of Figure P2.47 is similar to networks used en digital-to-analog converters. For this...Problem 2.48P:
Write equations and solve for the node voltages shown in Figure P2.48. Then, find the value of i1 ....Problem 2.49P:
Solve for the node voltages shown in Figure P2.49. Then, find the value of is. Figure P2.49Problem 2.50P:
Solve for the node voltages shown in Figure P2.50. What are the new values of the node voltages...Problem 2.51P:
Given R1=4 , R2=5 , R2=8 , R4=10 , R5=2 , and i5=2A , solve for the node voltages shown in Figure...Problem 2.52P:
Determine the value of i1 in Figure P2.52 using node voltages to solve the circuit. Select the...Problem 2.53P:
Given R1=15 , R5=5 , R3=20 , R4=10 , R5=8 , R6=4 , and is=5A, solve for the node voltages shown in...Problem 2.55P:
Use the symbolic features of MATLAB to find an expression for the equivalent resistance for the...Problem 2.56P:
Solve for the values of the node voltages shown in Figure P2.56. Then, find the value of ix. Figure...Problem 2.58P:
Solve for the power delivered to the 8- resistance and for the node voltages shown in Figure P2.58....Problem 2.60P:
Find the equivalent resistance looking into terminals for the network shown in Figure P2.60. [Hint:...Problem 2.61P:
Find the equivalent resistance looking into terminals for the network shown in Figure P2.61. [Hint:...Problem 2.62P:
Figure P2.62 shows an unusual voltage-divider circuit Use node-voltage analysis and the symbolic...Problem 2.63P:
Solve for the node voltages in the circuit of Figure P2.63. Disregard the mesh currents, i1, i2, i3,...Problem 2.64P:
We have a cube with 1- resistances along each edge as illustrated in Figure P2.64 in which we are...Problem 2.65P:
Solve for the power delivered to the 15- resistor and for the mesh currents shown in Figure P2.65....Problem 2.66P:
Determine the value of v2 and the power delivered by the source in the circuit of Figure P2.24 by...Problem 2.68P:
Solve for the power delivered by the voltage source in Figure P2.68, using the mesh-current method....Problem 2.71P:
Use mesh-current analysis to find the values of i1 and i2 in Figure P2.27. Select i1 clockwise...Problem 2.72P:
Find the power delivered by the source and the values of i1 and i2 in the circuit of Figure P2.23,...Problem 2.73P:
Use mesh-current analysis to find the values of i1 and i2 in Figure P2.29 First, select iA clockwise...Problem 2.74P:
Use mesh-current analysis to find the values of i1 and i2 in Figure P2.28. First, selectiAclockwise...Problem 2.75P:
The circuit shown in Figure P2.75 is the dc equivalent of a simple residential power distribution...Problem 2.76P:
Use MATLAB and mesh-current analysis to determine the value of v3 in the circuit of Figure P2.51....Problem 2.77P:
Connect a 1-V voltage source across terminals a and b of the network shown in Figure P2.55. Then,...Problem 2.78P:
Connect a 1-V voltage source across the terminals of the network shown in Figure P2.1(a). Then,...Problem 2.79P:
Use MATLAB to solve for the mesh currents in Figure P2.63.Problem 2.80P:
Find the Thévenin and Norton equivalent circuits for the two-terminal circuit shown in Figure P2.80....Problem 2.81P:
We can model a certain battery as a voltage source in series with a resistance The open-circuit...Problem 2.82P:
Find the Thévenin and Norton equivalent circuits for the circuit shown in Figure P2.82. Figure P2.82Problem 2.83P:
Find the Thévenin and Norton equivalent circuits for the two-terminal circuit shown in Figure P2.83....Problem 2.84P:
Find the Thévenin arid Norton equivalent circuits for the circuit shown in Figure P2.84. Take care...Problem 2.85P:
An automotive battery has an open-circuit voltage of 12.6 V and supplies 100 A when a 0.1- ...Problem 2.86P:
A certain two-terminal circuit has an open-circuit voltage of 15 V. When a 2-k load is attached,...Problem 2.87P:
If we measure the voltage at the terminals of a two-terminal netwod with two known (and different)...Problem 2.88P:
Find the Thévenin and Norton equivalent circuits for the circuit shown in Figure P2.88. Figure P2.88Problem 2.89P:
Find the maximum power that can be delivered to a resistive load by the circuit shown in Figure...Problem 2.90P:
Find the maximum power that can be delivered to a resistive load by the circuit shown in Figure...Problem 2.91P:
Figure P2.91 shows a resistive load RL connected to a Thévenin equivalent circuit. For what value of...Problem 2.92P:
Starling from the Norton equivalent circuit with a resistive load RL attached, find an expression...Problem 2.93P:
A battery can be modeled by a voltage source Vt in series with a resistance Rt. Assuming that the...Problem 2.94P:
Use superposition to find the current i in Figure P2.94. First, zero the current source and find the...Problem 2.95P:
Solve for is in Figure P2.49 by using superposition.Problem 2.96P:
Solve the circuit shown in Figure P2.48 by using superposition First, zero the 1-A source and find...Problem 2.97P:
Solve for i1 in Figure P2.34 by using superposition.Problem 2.98P:
Another method of solving the circuit of Figure P2.24 is to start by assuming that v2=1 V....Problem 2.99P:
Use the method of Problem P2.98 for the circuit of Figure P2.23 starting with the assumption that...Problem 2.100P:
Solve for the actual value of i6 for the circuit of Figure P2.100, starting with the assumption that...Problem 2.101P:
Device A shown in Figure P2.101 has v=3i2 for i 0 and v=0 for i<0. Figure P2.101 Solve for V with...Problem 2.102P:
The Wheatstone bridge shown in Figure 2.66 is balanced with R1=10 k , R3=3419 , and R2=1 k Find...Problem 2.103P:
The Wheatstone bridge shown in Figure 2.66has vs=10 V,R1=10 k ,R2=10 k , and Rx=5932 . The...Problem 2.104P:
In theory, any values can be used for R1 and R3 in the Wheatstone bridge of Figure 2.66. For the...Problem 2.105P:
Derive expressions for the Thévenin voltage and resistance seen by the detector in the Wheatstone...Problem 2.108P:
Explain what would happen if, in wiring the bridge circuit of Figure 2.67 on page 10? Explain what...Problem 2.1PT:
Match each entry in Table T2.1(a) with the best choice from the list given in Table T2.1(b) for...Problem 2.2PT:
Consider the circuit of Figure T2.2 with vs=96V , R1=6 , R2=48 , R3=16 , and R4=60 . Determine the...Problem 2.3PT:
Write MATLAB code to solve for the node voltages for the circuit of Figure T2.3 Figure T2.3Problem 2.4PT:
Write a set of equations that can be used to solve for the mesh currents of Figure 12.4. Be sure to...Problem 2.5PT:
Determine the Thévenin and Norton equivalent circuits for the circuit of Figure T2.5 Draw the...Problem 2.6PT:
According to the superposition principle, what percentage of the total current flowing through the...Browse All Chapters of This Textbook
Chapter 1 - IntroductionChapter 2 - Resistive CircuitsChapter 3 - Inductance And CapacitanceChapter 4 - TransientsChapter 5 - Steady-state Sinusoidal AnalysisChapter 6 - Frequency Response, Bode Plots, And resonanceChapter 7 - Logic CircuitsChapter 8 - Computers, Microcontrollers And Computer-based Instrumentation SystemsChapter 9 - DiodesChapter 11 - Field-effect Transistors
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