Pearson eText for College Physics: Expl...2nd EditionEugenia Etkina, Gorazd Planinsic Publisher: PEARSON+ISBN: 9780137443000
Pearson eText for College Physics: Expl...
Solutions for Pearson eText for College Physics: Explore and Apply -- Instant Access (Pearson+)
Problem 1RQ:
Review Question 19.1 What condition(s) is/are needed for electric charge to continuously travel from...Problem 2RQ:
Review Question 19.2 Describe the changes in electric potential through a circuit and relate them to...Problem 4RQ:
Review Question 19.4 Why does it make sense that all ammeters in Figure 19.16 have the same reading?Problem 5RQ:
Review Question 19.5 What experimental evidence supports the hypothesis that in your house the...Problem 6RQ:
Review Question 19.6 Eugenia says that the power of an electric device is directly proportional to...Problem 7RQ:
Review Question 19.7 Where is the electric potential higher: where the current enters" a resistor or...Problem 8RQ:
Review Question 19.8 Rank the four identical bulbs shown in Figure 19.33 from brightest to dimmest....Problem 9RQ:
Review Question 19.9 What does it mean when you get a negative value for the current in the circuit...Problem 10RQ:
Review Question 19.10 Why does the resistance of a lightbulb increase as the current through it...Problem 1MCQ:
Two identical bulbs are connected on parallel across the battery shown in Figure Q19.1. There is an...Problem 2MCQ:
Compare the potential difference across bulbs 1 and 2 in Figure Q19.1 after the switch is closed....Problem 3MCQ:
Two identical bulbs are in series as shown in Figure Q19.3. Which statement is correct? a. The...Problem 4MCQ:
4. Which statement below about the potential difference across the battery and across the identical...Problem 5MCQ:
Three circuits with identical bulbs and emf sources are shown in Figure Q19.5. Rank the circuits in...Problem 6MCQ:
6. Rank in order the potential differences across each of the five bulbs in the three circuits in...Problem 7MCQ:
7. Rank in order the five identical bulbs in the circuit shown in Figure Q19.7, listing the...Problem 8MCQ:
Four identical bulbs are shown in the circuit in Figure Q19.8. With the switch open, bulbs 1, 2, and...Problem 9MCQ:
Four identical bulbs are shown in the circuit in Figure Q19.9 with the switch open. How does the...Problem 10MCQ:
Consider the circuit in Figure Q19.10. The switch is open. What is the potential difference across...Problem 11MCQ:
11. Figure Q19.1 shows graphs for an incandescent lightbulb and a resistor. Choose all correct...Problem 12MCQ:
If an electric current were due to electrons moving only on the surface of a wire rather than...Problem 13MCQ:
13. Three light sources (a lightbulb, a blue LED are connected with two resistors and a 3.0-V...Problem 17CQ:
Birds on high power lines Why can birds perch on a 100,000-V power line with no adverse effects?Problem 18CQ:
18. Preventing electric shock When a person is repairing electrical equipment and can encounter high...Problem 19CQ:
(a) Using a voltmeter, how can you determine the electric current through a resistor? (b) Using an...Problem 20CQ:
(a) What does it mean if the current through a resistor is 3 A? (b) What does it mean if the...Problem 21CQ:
21. Resistors become warm when there is an electric current through them. Why doesn't this...Problem 22CQ:
At one time aluminum rather than copper wires were used to carry electric current through homes....Problem 23CQ:
23. How do you connect an ammeter in a circuit to measure the current? How do you connect a...Problem 26CQ:
26. Construct an electric circuit that is analogous to your circulatory system. Indicate the...Problem 27CQ:
27. Most Christmas tree lights with incandescent bulbs are connected in parallel (a) Describe one...Problem 28CQ:
28. Two students are arguing. Student A says that Ohm's law is only valid for ohmic resistors....Problem 30CQ:
When you close the switch in the circuit in Figure Q19.30, the capacitor charges. When you open the...Problem 1P:
1. A bulb in a table lamp has a current of 0.50 A through it. Determine two physical quantities...Problem 2P:
A long wire is connected to the terminals of a battery. In 8.0 s, 9.61020 electrons pass a cross...Problem 3P:
A typical flashlight battery will produce a 0.50-A current for about 3h before losing its charge....Problem 4P:
4. * Four friends each have a battery, a bulb, and one wire. They use the materials to try to light...Problem 5P:
5. Draw a circuit that has a battery, a lightbulb, and connecting wires Draw a schematic of a water...Problem 6P:
Add another battery to the circuit described in Problem 19.5. In how many different ways can you do...Problem 7P:
Add another lightbulb to the circuit with one battery described in Problem 19.5. In how many...Problem 8P:
A 9.0-V battery is connected to a resistor so that there is a 0.50-A current through the resistor....Problem 10P:
10. * A graph of the electric potential versus location in a series circuit with 1.0 A of current is...Problem 11P:
11. Sketch a potential-versus-location graph for the circuit shown in Figure P19.11 . Start at A and...Problem 12P:
12. Bio Electric currents in the body A person accidentally touches a 120-V electric line with one...Problem 13P:
13. An automobile lightbulb has a 1.0-A current when it is connected to a 12-V battery. What can you...Problem 14P:
* If a long wire is connected to the terminals of a 12-V battery, 6.41019 electrons pass a cross...Problem 15P:
Determine the current through a 2.5- resistor when connected across two 1.5-V batteries in series (a...Problem 16P:
16. * You have a circuit with a 50-Ω, a 100- Ω, and a 150- Ω resistor, and a battery connected in...Problem 17P:
You have a circuit with a 50-, a 100- , and a 150- resistor connected in parallel to the same...Problem 18P:
18. * A toy has two red LEDs (), two green LEDs (), and two blue LEDs () connected in series. (a)...Problem 19P:
* You want to power a green LED (VOpenG=2.1V) and a red LED (VOpenR=1.6V) using a 9.0-V battery You...Problem 20P:
20. * A circuit consists of a green LED and a resistor connected in series with a variable power...Problem 21P:
21. * You connect a 50-Ω resistor to a 9-V battery whose internal resistance is 1 Ω. (a) Determine...Problem 22P:
22. * EST Making tea You use an electric teapot to make tea It takes about 2 min to boll 0.5 L of...Problem 23P:
* If a long wire is connected to the terminals of a 12-V battery, 6.41019 electrons pass a cross...Problem 24P:
** Three friends are arguing with each other. Adam says that a battery will send the same current to...Problem 25P:
25. * You have a 40-W lightbulb and a 100-W bulb. What do these readings mean? Can we say that the...Problem 27P:
27. * (a) Write two loop rule equations and one junction rule equation for the circuit in Figure...Problem 28P:
28. * (a) Write Kirchhoff's loop rule for the circuit shown in Figure P19.28 for the case in which ...Problem 29P:
29. * Repeat parts (a) and (b) of the previous problem for the case in which (c) Determine the...Problem 30P:
* (a) Determine the value of 1 so that there is a clockwise current of 1.0 A in the circuit shown in...Problem 31P:
31. ** The current through resistor in Figure P19.27 is 2.0 A Determine the currents through...Problem 33P:
33. * (a) Write the loop rule for two different loops in the circuit shown in Figure P19.33 and the...Problem 34P:
34. ** Determine the value of , shown in Figure P19.33 so that the current through equals twice...Problem 35P:
* Determine (a) the equivalent resistance of resistors R1,R2,andR3 in Figure P19.35 for R1=28,...Problem 36P:
36. (a) Determine the equivalent resistance of resistors and in Figure P19.35 for , and . (b)...Problem 37P:
37. * Determine the equivalent resistance of the resistors shown in Figure P19.37 if and
Problem 38P:
* Determine (a) the equivalent resistance of the resistors in the circuit in Figure P19.38 and (b)...Problem 40P:
You close the switch in the circuit in Figure P19.40 and wait until the currents stop changing. (a)...Problem 41P:
* You close the switch in the circuit in Figure P19.41 and wait until the currents stop changing....Problem 42P:
42. * Home wiring A simplified electrical circuit for a home is shown in Figure P19.42 . (a)...Problem 43P:
43. ** (a) Write Kirchhoff's rules for two loops and one junction in the circuit shown in Figure...Problem 44P:
of internal resistance. Because each row has the same emf and the rows are connected together on...Problem 45P:
45. Home wiring A 120-V electrical line m a home is connected to a 60-W lightbulb, a 180-W...Problem 46P:
* Tree lights Nine tree lights are connected m parallel across a 120-V potential difference. The...Problem 47P:
47. * Two lightbulbs use 30 W and 60 W, respectively, when connected in parallel to a 120-V source....Problem 48P:
* Three identical resistors, when connected in series, transform electrical energy into thermal...Problem 49P:
. (a) Determine the power delivered to a resistor R connected to the battery terminals for values of...Problem 50P:
* Determine the equivalent resistance of the circuit in Figure P19.50 when (a) both switches are...Problem 51P:
51 toI4 from largest to smallest Assume all wires have negligible resistance and the battery has...Problem 52P:
Figure P19.52 shows a real circuit that consists of four identical lightbulbs that are mounted in...Problem 53P:
* A 100-m-long copper wire of radius 0.12 mm and mass 40 g is connected across a 1.5-V battery. Make...Problem 54P:
54. * BMT subway rail resistance The BMT subway line in New York City stretches roughly 30 km from...Problem 55P:
* Thermometer A platinum resistance thermometer consists of a 0.10-mm-diameter platinum wire wrapped...Problem 56P:
As the potential difference in volts across a thin platinum wire increases, the current in amperes...Problem 57P:
57. * BIO Respiration detector A respiration detector monitors a person's breathing. One type...Problem 58P:
* A wire whose resistance is R is stretched so that its length is tripled while its volume remains...Problem 59P:
59. * Ratio reasoning Determine the ratio of the resistances of two wires that are identical except...Problem 60P:
** Electronics detective You need to determine the mass and length of the wire inside a particular...Problem 61P:
61. * A battery produces a 2.0-A current when connected to an unknown resistor of resistance R. When...Problem 62P:
62. * Resistance of human nerve cell Some human nerve cells have a long, thin cylindrical cable (the...Problem 63P:
63. * Conductive textiles Metal strands can be woven into textiles to make them conductive You have...Problem 64GP:
64. * EST Figure P19.64 shows an I-versus-V graph for an incandescent lightbulb and a resistor...Problem 65GP:
* EST Figure P19.64 shows an I-versus- V graph for an incandescent lightbulb and a resistor (data...Problem 66GP:
*EST Figure P19.64 shows an I-versus- V graph for an incandescent lightbulb and a resistor (data are...Problem 67GP:
* Wiring high-fidelity speakers Your high-fidelity amplifier has one output for a speaker of...Problem 68GP:
68 * BIO EST Lifting forearm by electric current You are asked to evaluate an idea for making it...Problem 69GP:
69. * EST Switches You have a power supply, a 10-W bulb, and a 15-W bulb. You also have two types of...Problem 70GP:
** Wiring a staircase Devise an electric circuit that will allow you to turn a stairway lightbulb on...Problem 72GP:
72. ** EST Electric water heater An electric hot water heater has a 7000-W resistive heating...Problem 73GP:
73. ** BIO EST The hands and arms as a conductor While doing laundry you reach to turn on the light...Problem 75GP:
75. * A nickel wire of length L and a voltmeter are connected to a battery as shown in Figure...Problem 76GP:
** Solve the previous problem if the internal resistance of the battery is r and the resistance of...Problem 77GP:
* EST Figure P19.77 shows an | I | -versus-V graph of a circuit that consists of a red LED...Problem 78GP:
VI a. Connect a voltmeter to a batterys terminals. Record the voltage reading V Then (in a different...Problem 79GP:
equaled the number of electrons passing a cross section in a wire when there is a 1.0-A current...Problem 80GP:
80. * A 5.0-A current caused by moving electrons flows through a wire. (a) Determine the number of...Problem 81GP:
81. ** BIO Current across membrane wall of axon An axon cable that connects the input and output...Problem 82RPP:
BIO Signals in nerve cells stimulate muscles The input end of a human nerve cell is connected to an...Problem 83RPP:
BIO Signals in nerve cells stimulate muscles The input end of a human nerve cell is connected to an...Problem 84RPP:
BIO Signals in nerve cells stimulate muscles The input end of a human nerve cell is connected to an...Problem 85RPP:
BIO Signals in nerve cells stimulate muscles The input end of a human nerve cell is connected to an...Problem 86RPP:
86. The horizontal 4-Ω resistors in the two circuits in Figure P19.86 represent the resistance of a...Problem 87RPP:
87. Suppose nerve impulses travel at 100 m/s in the axons of nerve cells from your fingers to your...Problem 88RPP:
BIO Effect of electric current on human body Nerve impulses are initiated at the input end of a...Problem 89RPP:
BIO Effect of electric current on human body Nerve impulses are initiated at the input end of a...Problem 90RPP:
BIO Effect of electric current on human body Nerve impulses are initiated at the input end of a...Problem 91RPP:
BIO Effect of electric current on human body Nerve impulses are initiated at the input end of a...Problem 92RPP:
BIO Effect of electric current on human body Nerve impulses are initiated at the input end of a...Browse All Chapters of This Textbook
Chapter 2 - Kinematics: Motion In One DimensionChapter 3 - Newtonian MechanicsChapter 4 - Applying Newton’s LawsChapter 5 - Circular MotionChapter 6 - Impulse And Linear MomentumChapter 7 - Work And EnergyChapter 8 - Extended Bodies At RestChapter 9 - Rotational MotionChapter 10 - Vibrational MotionChapter 11 - Mechanical Waves
Chapter 12 - GasesChapter 13 - Static FluidsChapter 14 - Fluids In MotionChapter 15 - First Law Of ThermodynamicsChapter 16 - Second Law Of ThermodynamicsChapter 17 - Electric Charge, Force, And EnergyChapter 18 - The Electric FieldChapter 19 - Dc CircuitsChapter 20 - MagnetismChapter 21 - Electromagnetic InductionChapter 22 - Reflection And RefractionChapter 23 - Mirrors And LensesChapter 24 - Wave OpticsChapter 25 - Electromagnetic WavesChapter 26 - Special RelativityChapter 27 - Quantum OpticsChapter 28 - Atomic PhysicsChapter 29 - Nuclear PhysicsChapter 30 - Particle Physics
Sample Solutions for this Textbook
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Chapter 2, Problem 1RQChapter 3, Problem 1RQChapter 4, Problem 1RQChapter 5, Problem 1RQChapter 6, Problem 1RQChapter 7, Problem 1RQIntroduction: Center of mass is a point where the complete mass of any object is said to be...Chapter 9, Problem 1RQChapter 10, Problem 1RQ
Chapter 11, Problem 1RQIntroduction: The following mechanisms can be logically constructed to understand the reason behind...Chapter 13, Problem 1RQIntroduction: Bernoulli’s principle states that fluids moving at a faster velocity have lesser...Chapter 15, Problem 1RQIntroduction: Energy of an isolated system, such as the universe always remains constant, as stated...Chapter 17, Problem 1RQChapter 18, Problem 1RQChapter 19, Problem 1RQChapter 20, Problem 1RQChapter 21, Problem 1RQIntroduction: Experimentally, it has been observed that, the projection on the wall will be upside...Chapter 23, Problem 1RQChapter 24, Problem 1RQChapter 25, Problem 1RQChapter 26, Problem 1RQIntroduction: Planck’s hypothesis stated that an accelerated charged particle can radiate an...Introduction: The Rutherford atomic model is also known as the planetary or nuclear model of an...Introduction: Rutherford, in 1899, conducted an experiment in which he set up two parallel metal...Introduction: Beta decay is referred to as the transformation of protons into neutrons and...
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