Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 83CP
Two delicate devices are rated as shown in Fig. 2.142. Find the values of the resistors R1 and R2 needed to power the devices using a 36-V battery.
Figure 2.142
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
2. The internal resistance of the battery is 0.3 2. Find I, I1
and voltmeter readings V₁ and V₂ for the circuit shown in
Figure 2.
Ans.: I = 1.35 A, I₁ = 0.34 A, V₁ = 3.7 V, and
V2 = 16.9 V.
7.115
20 V,
0.392
I
20
W
822
w
¾602
Figure 2.
792
w
1022
W
11
www
122
Calculate the ratio iC2/iC1 for (vBE2 − vBE1) = 0.2 V, 0.3 V and 0.4 V.
2.
In the circuit shown there are five resistors.
The battery is not an ideal battery and has an internal resistance of 25 0.
A) What is the power dissipated by the 300 resistor below?
B) What is the energy lost in the battery in 10 minutes of operation?
C) If the 300 resistor burns out is the energy lost in the battery the same? Why or why not?
200
50V
502
m
300.
100
m
600
Chapter 2 Solutions
Fundamentals of Electric Circuits
Ch. 2.2 - The essential component of a toaster is an...Ch. 2.2 - For the circuit shown in Fig. 2.9, calculate the...Ch. 2.2 - A resistor absorbs an instantaneous power of 30...Ch. 2.3 - How many branches and nodes does the circuit in...Ch. 2.4 - Find v1 and v2 in the circuit of Fig. 2.22. Figure...Ch. 2.4 - Find vx and vo in the circuit of Fig. 2.24. Figure...Ch. 2.4 - Find vo and io in the circuit of Fig. 2.26. Figure...Ch. 2.4 - Find the current and voltages in the circuit shown...Ch. 2.6 - By combining the resistors in Fig.2.36, find Req....Ch. 2.6 - Find Rab for the circuit in Fig.2.39. Figure 2.39...
Ch. 2.6 - Calculate Geq in the circuit of Fig.2.41. Figure...Ch. 2.6 - Find v1 and v2 in the circuit shown in Fig. 2.43....Ch. 2.7 - Transform the wye network in Fig. 2.51 to a delta...Ch. 2.7 - For the bridge network in Fig. 2.54, find Rab and...Ch. 2.8 - Refer to Fig. 2.55 and assume there are six light...Ch. 2.8 - Following the ammeter setup of Fig. 2.61. design...Ch. 2 - The reciprocal of resistance is: (a) voltage (b)...Ch. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - The maximum current that a 2W, 80 k resistor can...Ch. 2 - Prob. 5RQCh. 2 - The current I in the circuit of Fig. 2.63 is: (a)...Ch. 2 - The current I0 of Fig. 2.64 is: (a) 4 A (b) 2 A...Ch. 2 - In the circuit in Fig. 2.65, V is: (a) 30 V (b) 14...Ch. 2 - Which of the circuit in Fig. 2.66 will give you...Ch. 2 - In the circuit of Fig. 2.67, a decrease in R3...Ch. 2 - Design a problem, complete with a solution, to...Ch. 2 - Find the hot resistance of a light bulb rated 60...Ch. 2 - A bar of silicon is 4 cm long with a circular...Ch. 2 - (a) Calculate current i in Fig. 2.68 when the...Ch. 2 - For the network graph in Fig. 2.69. find the...Ch. 2 - In the network graph shown in Fig. 2.70, determine...Ch. 2 - Determine the number of branches and nodes in the...Ch. 2 - Design a problem, complete with a solution, to...Ch. 2 - Find i1, i2, and i3 in Fig. 2.73. Figure 2.73 For...Ch. 2 - Determine i1 and i2 in the circuit of Fig. 2.74....Ch. 2 - In the circuit of Fig. 2.75, calculate V1 and V2....Ch. 2 - In the circuit in Fig. 2.76, obtain v1, v2, and...Ch. 2 - For the circuit in Fig. 2.77, use KCL to find the...Ch. 2 - Given the circuit in Fig. 2.78, use KVL to find...Ch. 2 - Calculate v and ix in the circuit of Fig. 2.79....Ch. 2 - Determine Vo in the circuit in Fig. 2.80. Figure...Ch. 2 - Obtain v1 through v3 in the circuit of Fig. 2.81....Ch. 2 - Find I and V in the circuit of Fig. 2.82. Figure...Ch. 2 - From the circuit in Fig. 2.83, find I, the power...Ch. 2 - Determine io in the circuit of Fig. 2.84. Figure...Ch. 2 - Find Vx in the circuit of Fig. 2.85. Figure 2.85...Ch. 2 - Find Vo in the circuit in Fig. 2.86 and the power...Ch. 2 - In the circuit shown in Fig. 2.87, determine Vx...Ch. 2 - For the circuit in Fig. 2.88, find Vo/Vs in terms...Ch. 2 - For the network in Fig. 2.89, find the current,...Ch. 2 - For the circuit in Fig. 2.90, io = 3 A. Calculate...Ch. 2 - Calculate Io in the circuit of Fig. 2.91. Figure...Ch. 2 - Design a problem, using Fig. 2.92, to help other...Ch. 2 - All resistors (R) in Fig. 2.93 are 10 each. Find...Ch. 2 - For the circuit in Fig. 2.95, determine i1 to i5....Ch. 2 - Find i1 through i4 in the circuit in Fig. 2.96....Ch. 2 - Obtain v and i in the circuit of Fig. 2.97. Figure...Ch. 2 - Using series/parallel resistance combination, find...Ch. 2 - Calculate Vo and Io in the circuit of Fig. 2.99....Ch. 2 - Find i and Vo in the circuit of Fig. 2.100. Figure...Ch. 2 - Given the circuit in Fig. 2.101 and that the...Ch. 2 - Find Req and io in the circuit of Fig. 2.102....Ch. 2 - Evaluate Req looking into each set of terminals...Ch. 2 - For the ladder network in Fig. 2.104, find I and...Ch. 2 - If Req = 50 in the circuit of Fig. 2.105, find R....Ch. 2 - Reduce each of the circuits in Fig. 2.106 to a...Ch. 2 - Calculate the equivalent resistance Rab at...Ch. 2 - For the circuits in Fig. 2.108, obtain the...Ch. 2 - Find the equivalent resistance at terminals a-b of...Ch. 2 - Find I in the circuit of Fig. 2.110. Figure 2.110Ch. 2 - Find the equivalent resistance Rab in the circuit...Ch. 2 - Convert the circuits in Fig. 2.112 from Y to ....Ch. 2 - Transform the circuits in Fig. 2.113 from to Y....Ch. 2 - Design a problem to help other students better...Ch. 2 - Obtain the equivalent resistance at the terminals...Ch. 2 - For the circuit shown in Fig. 2.116, find the...Ch. 2 - Obtain the equivalent resistance Rab in each of...Ch. 2 - Consider the circuit in Fig. 2.118. Find the...Ch. 2 - Calculate I0 in the circuit of Fig. 2.119. Figure...Ch. 2 - Determine V in the circuit of Fig. 2.120. Figure...Ch. 2 - Find Req and I in the circuit of Fig. 2.121....Ch. 2 - The 150 W tight bulb in Fig. 2.122 is rated at 110...Ch. 2 - If the three bulbs of Prob. 2.59 are connected in...Ch. 2 - As a design engineer, you are asked to design a...Ch. 2 - Prob. 62PCh. 2 - If an ammeter with an internal resistance of 100 ...Ch. 2 - The potentiometer (adjustable resistor) Rx in Fig....Ch. 2 - Design a circuit that uses a dArsonval meter (with...Ch. 2 - A 20-k/V voltmeter reads 10 V full scale. (a) What...Ch. 2 - (a) Obtain the voltage Vo in the circuit of Fig....Ch. 2 - (a) Find the current I in the circuit of Fig....Ch. 2 - A voltmeter used to measure Vo in the circuit in...Ch. 2 - (a) Consider the Wheatstone bridge shown in Fig....Ch. 2 - Figure 2.131 represents a model of a solar...Ch. 2 - Find Vo in the two-way power divider circuit in...Ch. 2 - An ammeter model consists of an ideal ammeter in...Ch. 2 - The circuit in Fig. 2.134 is to control the speed...Ch. 2 - Find Rab in the four-way power divider circuit in...Ch. 2 - Repeat Prob. 2.75 for the eight-way divider shown...Ch. 2 - Suppose your circuit laboratory has the following...Ch. 2 - In the circuit in Fig. 2.137, the wiper divides...Ch. 2 - Prob. 79CPCh. 2 - A loudspeaker is connected to an amplifier as...Ch. 2 - For a specific application, the circuit shown in...Ch. 2 - The pin diagram of a resistance array is shown in...Ch. 2 - Two delicate devices are rated as shown in Fig....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- consider the following circuit composed of four resistors and an ideal battery. each resistor has a resistance of 2.00 ohms. the battery has a terminal voltage of 30.0V. a.) what is the equivalent resistance of this circuit? b.) what is the equivalent current passing through this circuit? c.) what is the voltage drop across R1? d.) what is the current passing through R2?arrow_forwardA battery produces a current of 0.6 A when the external resistance is 2? and 0.2 A when the external resistance is 12?. Find the emf of the battery O 3 V O 6 V O 9 V O 12 Varrow_forward3. Graphs of current against voltage for two resistors P and Q are shown in Figure 2.6. Determine the value of each resistor. } Current / mA 25- 20 15 10 5 O Figure 2.6 4 8 Resistor A Voltage / V Resistor B 12 16 20arrow_forward
- -If a voltmeter that is ideal is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading in units of V -If a voltmeter of resistance 1.00 MΩ is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading in units of Varrow_forward2. a) Briefly explain the power rating of a resistor b) Carbon composition resistors are available with power rating of '/s W, ¼ W, ½ W, 1 and 2 W. Given the circuit values of voltage, current, and/or resistance in each of the following. Determine the minimum power rating that the carbon composition resistor can have. i. R= 10 2 ii. R= 1.5 k2 iii. V= 50 mV V = 4 V |= 20 mA | = 0.2 Aarrow_forwardA battery with & = 2.00 V and no internal resistance supplies current to the circuit shown in the figure below. When the double-throw switch S is open as shown in the figure, the current in the battery is 1.04 mA. When the switch is closed in position a, the current in the battery is 1.30 mA. When the switch is closed in position b, the current in the battery is 2.10 mA. Find the following resistances. ww R₁ R₂ R₂ TE da S ob R₂ (a) R₁ 1.92 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully, k (b) R₂ 1538.46 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. k (c) R3 ΚΩarrow_forward
- A 230-V, 1 000-c/s voltage is applied to a resistor in series with C capacıtance 0 06 µF, the reading is 100 V. Find the current when the voltmeter is disconnected. 86 0 05 µF. When C is shunted by a voltmeter of [0 0527 A.]arrow_forwardThe power rating of a light bulb is the power it dissipates when connected across a 120 volt potential difference. What is the resistance, and current draw of: (b) a 30 W florescent bulb ? (2 and A)arrow_forwardProblem 2.33. Readings of the ammeter and voltmeter are shown in the following figure. A. Based on voltage and current measurements determine if the element is a resistance or a current source. B. Find the power delivered to the circuit element or taken from it in every case. A+ A) +2 mA +V- -5 V B) +A- -0.5 A -V+ -10 V A +1 μA -V+ -10 Varrow_forward
- Draw a circuit diagram showing a 4.5-V battery, a resistor; and an ammeter that reads 85 mA. Determine the resistance and label the resistor. Add a voltmeter to measure the potential difference across the resistor.arrow_forwardQ1 In Figure 1, the resistances are R1=2.0 ohm and R2=4.0 ohm, and the ideal batteries have emfs E1=4.0 V and E2=E3=8.0 V. (a) What is size of the current in in battery 1? * R R R R1 O a) 0.17 A b) 0.67 A O c) 2.0 A O d) 6.0 Aarrow_forwardQ2/ Determine the voltage and current of each elements in the circuit shown in Figure: 0.75 A 15 V 60 A 20 2 0.25 A 14 10 aarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,
Current Divider Rule; Author: Neso Academy;https://www.youtube.com/watch?v=hRU1mKWUehY;License: Standard YouTube License, CC-BY