College PhysicsOER 2016 EditionOpenStax Publisher: OpenStax CollegeISBN: 9781947172173
College Physics
Solutions for College Physics
Problem 1CQ:
How do the multiple-loop coils and iron ring in the version of Faraday's apparatus shown in Figure...Problem 2CQ:
When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the louse exerted...Problem 4CQ:
Is an emf induced in the coil in Figure 23.54 when it is stretched? If so, state why and give the...Problem 5CQ:
A person who works with large magnets sometimes places her head inside a strong field. She reports...Problem 6CQ:
A particle accelerator sends highvelocity charged particles down an evacuated pipe. Explain how a...Problem 7CQ:
Why must pan of the circuit be moving relative to other parts, to have usable motional emf?...Problem 8CQ:
A powerful induction cannon can be made by placing a metal cylinder inside a solenoid coil. The...Problem 9CQ:
An induction slave heats a pot with a coil carrying an alternating current located beneath the pot...Problem 10CQ:
Explain how you could thaw out a frozen water pipe by wrapping a coil carrying an alternating...Problem 11CQ:
Explain why magnetic damping might not be effective on an object made of several thin conducting...Problem 12CQ:
Explain how electromagnetic induction can be used to detect metals? This technique is particularly...Problem 13CQ:
Using RHR-l, show that the emfs in the sides of the generator loop in Figure 23.23 are in the same...Problem 14CQ:
The source of a generator’s electrical energy output is the work done to turn its coils. How is the...Problem 15CQ:
Suppose you find that the belt drive connecting a powerful motor to an air conditioning unit is...Problem 16CQ:
Explain what causes physical vibrations in transformers at twice the frequency of the AC power...Problem 17CQ:
Does plastic insulation on live/hot wires prevent shock hazards, thermal hazards, or both?Problem 19CQ:
A GFI may trip just because the live/hot and neutral wires connected to it are significantly...Problem 20CQ:
How would you place two identical flat coils in contact so that they had the greatest mutual...Problem 21CQ:
How would you shape a given length of wire to give it the greatest self-inductance? The least?Problem 23CQ:
Presbycusis is a hearing loss due to age that progressively affects higher frequencies. A hearing...Problem 24CQ:
Would you use a large inductance or a large capacitance in series with a system to filter out low...Problem 25CQ:
High-frequency noise in AC power can damage computers. Does the plug-in unit designed to prevent...Problem 26CQ:
Does inductance depend on current, frequency, or both? What about inductive reactance?Problem 27CQ:
Explain why the capacitor in Figure 23.55(a) acts as a low-frequency filter between the two...Problem 28CQ:
If the capacitors in Figure 23.55 are replaced by inductors, which acts as a low-frequency fitter...Problem 29CQ:
Does the resonant frequency of an AC circuit depend on the peak voltage of the AC source? Explain...Problem 30CQ:
Suppose you have a motor with a power factor significantly less than 1. Explain why it would be...Problem 1PE:
What is the value of the magnetic flux at coil 2 in Figure 23.56 due to coil 1? Figure 23.56 (a) The...Problem 2PE:
What is the value of the magnetic flux through the coil in Figure 23.56 (b) due to the wire?Problem 3PE:
Referring to Figure 23.5?(a), what is the direction of the current induced in coil 2: (a) If the...Problem 4PE:
Referring to Figure 23.57(b), what is the direction of the current induced in the coil: (a) If the...Problem 5PE:
Referring to Figure 23.58, what are the directions of the currents in coils 1, 2, and 3 (assume that...Problem 8PE:
Suppose a 50-turn coil lies in the plane of the page in a uniform magnetic field that is directed...Problem 9PE:
(a) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI...Problem 10PE:
Integrated Concepts Referring to the situation in the previous problem: (a) What current is induced...Problem 11PE:
An emf is induced by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00105T magnetic...Problem 12PE:
A 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having...Problem 13PE:
Integrated Concepts Approximately how does the emf induced in the loop in Figure 23.57(b) depend on...Problem 14PE:
Integrated Concepts A lightning bolt produces a rapidly varying magnetic field. It the belt strikes...Problem 15PE:
Use Faraday’s law, Lenz’s law, and RHR—l to show that the magnetic force on the current in the...Problem 16PE:
If a current flows in the Satellite Tether shown in Figure 23.12, use Faraday’s law, Lenz'S law, and...Problem 17PE:
(a) A jet airplane with a 75.0 m wingspan is flying at 280 m/s. What emf is induced between wing...Problem 18PE:
(a) A nonferrous screwdriver is being used in a 2.00 T magnetic field. What maximum emf can be...Problem 19PE:
At what speed must the sliding rod in Figure 23.11 move to produce an emf of 1.00 V in a 1.50 T...Problem 20PE:
The 12.0 cm long rod in Figure 23.11 moves at 4.00 m/s. What is the strength of the magnetic field...Problem 21PE:
Prove that when B, l, and v are not mutually perpendicular, motional emf is given by emf=Blvsin. If...Problem 22PE:
In the August 1992 space shuttle flight, only 250 m of the conducting tether considered in Example...Problem 23PE:
Integrated Concepts Derive an expression for the current in a system like that in Figure 23.11,...Problem 24PE:
Integrated Concepts The Tethered Satellite in Figure 23.12 has a mass at 525 kg and is at the end of...Problem 25PE:
Integrated Concepts The Tethered Satellite discussed in this module is producing 5.00 kV, and a...Problem 26PE:
Make a drawing similar to Figure 23.14, but with the pendulum moving in the opposite direction. Then...Problem 27PE:
Figure 23.59 A coil is moved into and out of a region of uniform magnetic field. A coil is moved...Problem 28PE:
Calculate the peak voltage of a generator that rotates its 200-turn, 0.100 m diameter coil at 3600...Problem 29PE:
At what angular velocity in rpm will the peak voltage of a generator be 480 V. if its 500-turn, 8.00...Problem 30PE:
What is the peak emf generated by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s...Problem 31PE:
What is the peak emf generated by a 0.250 m radius, 500turn coil is rotated one-fourth of a...Problem 32PE:
(a) A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00...Problem 33PE:
Integrated Concepts This problem refers to the bicycle generator considered in the previous problem....Problem 34PE:
(a) A car generator turns at 400 rpm when 1he engine is idling. Its 300-turn, 5.00 by 8.00 cm...Problem 35PE:
Show that if a coil rotates at an angular velocity (, the period of its AC output is 2(/(.Problem 36PE:
A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 radius in a 1.25 T field,...Problem 37PE:
(a) If the emf of a coil rotating in a magnetic field is zero at t = 0, and increases to its first...Problem 38PE:
Unreasonable Results A 500-turn coil with a 0.250 m2 area is spun in the Earth’s 5.00105T field,...Problem 39PE:
Suppose a motor connected to a 120 V source draws 10.0 A when it first starts. (a) What is its...Problem 40PE:
A motor operating on 240 V electricity has a 180 V back emf at operating speed and draws a 12.0 A...Problem 41PE:
What is the back emf of a 120 V motor that draws 3.00 A at its normal speed and 20.0 A when first...Problem 42PE:
The motor in a toy car operates on 6.00 V. developing a 4.50 V back emf at normal speed. If it draws...Problem 43PE:
Integrated Concepts The motor in a toy car is powered by four batteries in series, which produce a...Problem 44PE:
A plug—in transformer, like that in Figure 23.29, supplies 9.00 V to a video game system. (a) How...Problem 45PE:
An American traveler in New Zealand carries a transformer to convert New Zealand’s standard 240 V to...Problem 46PE:
A cassette recorder uses a plug-in transformer to convert 120 V to 12.0 V, with a maximum current...Problem 47PE:
(a) What is the voltage output of a transformer used for rechargeable flashlight batteries, if its...Problem 48PE:
(a) The plug-in transformer for a laptop computer puts out 7.50 V and can supply a maximum current...Problem 49PE:
A multipurpose transformer has a secondary coil with several points at which a 1inziltage can be...Problem 50PE:
A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage...Problem 51PE:
If the power output in the previous problem is 1000 MW and line resistance is 2.00 (, what were the...Problem 52PE:
Unreasonable Results The 335 kV AC electricity from a power transmission line is fed into the...Problem 53PE:
Construct Your Own Problem Consider a double transformer to be used to create very large voltages....Problem 54PE:
Integrated Concepts A short circuit to the grounded metal case of an appliance occurs as shown in...Problem 55PE:
Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A...Problem 56PE:
If two coils placed next to one another have a mutual inductance at 5.00 mH, what voltage is induced...Problem 57PE:
The 4.00 A current through a 7.50 mH inductor is switched off in 8.33 ms. What is the emf induced...Problem 58PE:
A device is turned on and 3.00 A flows through it 0.100 ms later. What is the self-inductance of the...Problem 60PE:
Camera flashes charge a capacitor to high voltage by switching the current through an inductor on...Problem 61PE:
A large research solenoid has a self-inductance of 25.0 H. (a) What induced emf opposes shutting it...Problem 62PE:
(a) Calculate the self-inductance of a 50.0 cm long, 10.0 cm diameter solenoid having 1000 loops....Problem 63PE:
A precision laboratory resistor is made of a coil of wire 1.50 cm in diameter and 4.00 cm long, and...Problem 64PE:
The healing coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a...Problem 65PE:
When the 20.0 A current through an inductor is turned off in 1.50 ms, an 800 V emf is induced,...Problem 66PE:
How fast can the 150 A current through a 0.250 H inductor be shut off if the induced emf cannot...Problem 67PE:
Integrated Concepts A very large, superconducting solenoid such as one used in MRI scene, stores...Problem 68PE:
Unreasonable Results A 25.0 H inductor has 100 A of current turned off in 1.00 ms. (a) What voltage...Problem 69PE:
It you want a characteristic RL time constant of 1.00 s, and you have a 500 (resistor, what value of...Problem 70PE:
Your RL circuit has a characteristic time constant of 20.0 ns, and a resistance of 5.00 M (a) What...Problem 71PE:
A large superconducting magnet, used for magnetic resonance imaging, has a 50.0 H inductance. It you...Problem 72PE:
Verify that alter a time of 10.0 ms, the current for the situation considered in Example 23.9 will...Problem 73PE:
Suppose you have a supply of inductors ranging from 1.00 nH to 10.0 H, and registers ranging from...Problem 74PE:
(a) What is the characteristic time constant of a 25.0 mH inductor that has a resistance of 4.00 ?...Problem 75PE:
What percentage of the final current I0 flows through an inductor L in series with a resistor R,...Problem 76PE:
The 5.00 A current through a 1.50 H inductor is dissipated by a 2.00 ( resistor in a circuit like...Problem 77PE:
(a) Use the exact exponential treatment to find how much time is required to bring the current...Problem 78PE:
(a) Using the exact exponential treatment, find the time required for the current through a 2.00 H...Problem 80PE:
What value of inductance should be used if a 20.0 k(reactance is needed at a frequency of 500 Hz?Problem 83PE:
(a) Find me current through a 0.500 H inductor connected to a 60.0 Hz, 430 V AC source. (b) What...Problem 84PE:
(a) What current flows when a 60.0 Hz, 480 V AC source is connected to a 0.250 (F capacitor? (b)...Problem 85PE:
A 20.0 kHz, 16.0 V source connected to an inductor produces a 2.00 A current. What is the...Problem 86PE:
A 20.0 HZ, 16.0 V source produces a 2.00 mA current when connected to a capacitor. What is the...Problem 87PE:
(a) An inductor designed to filter high-frequency noise from power supplied to a personal computer...Problem 88PE:
The capacitor in Figure 23.55(a) is designed to filter low—frequency signals, impeding their...Problem 89PE:
The capacitor in Figure 23.55(b) will filler high—frequency signals by shorting them to...Problem 90PE:
Unreasonable Results In a recording of voltages due to brain activity (an EEG), a 10.0 mV signal...Problem 91PE:
Construct Your Own Problem Consider the use of an inductor in series with a computer operating on 60...Problem 92PE:
An RL circuit consists of a 40.0 (resistor and a 3.00 mH inductor. (a) Find its impedance Z at l60.0...Problem 93PE:
An RC circuit consists of a 40.0 (resistor and a 5.00 (F capacitor. (a) Find its impedance an 60.0...Problem 94PE:
An LC circuit consists of a 3.00 mH inductor and a 5.00 (F capacitor. (a) Find its impedance at...Problem 95PE:
What is the resonant frequency of a 0.500 mH inductor connected to a 40.0 (F capacitor?Problem 96PE:
To receive AM radio, you want an RLC circuit that can be made to resonate at any frequency between...Problem 97PE:
Suppose you have a supply of inductors ranging from 1.00 nH to 10.0 H, and capacitors ranging from...Problem 98PE:
What capacitance do you need to produce a resonant frequency of 1.00 GHz, when using an 8.00 nH...Problem 99PE:
What inductance do you need to produce a resonant frequency of 60.0 Hz, when using a 2.00 F...Problem 100PE:
The lowest frequency in the FM radio band is 88.0 MHz. (a) What inductance is needed to produce this...Problem 101PE:
An RLC series circuit has a 2.50 (resistor, a 100 (H inductor, and an 80.0 (F capacitor. (a) Find...Problem 102PE:
An RLC series circuit hag a 1.00 k(register, a 150 (H inductor, and a 25.0 nF capacitor. (a) Find...Problem 103PE:
An RLC series circuit has a 2.50 (resistor, a 100 (H inductor, and an 80.0 (F capacitor. (a) Find...Problem 104PE:
An RLC series circuit has a 1.00 k(resistor, a 1.50 (H inductor, and a 25.0 nF capacitor. (a) Find...Browse All Chapters of This Textbook
Chapter 1 - Introduction: The Nature Of Science And PhysicsChapter 2 - KinematicsChapter 3 - Two-dimensional KinematicsChapter 4 - Dynamics: Force And Newton's Laws Of MotionChapter 5 - Further Applications Of Newton's Laws: Friction, Drag, And ElasticityChapter 6 - Gravitation And Uniform Circular MotionChapter 7 - Work, Energy, And Energy ResourcesChapter 8 - Linear Momentum And CollisionsChapter 9 - Statics And TorqueChapter 10 - Rotational Motion And Angular Momentum
Chapter 11 - Fluid StaticsChapter 12 - Fluid Dynamics And Its Biological And Medical ApplicationsChapter 13 - Temperature, Kinetic Theory, And The Gas LawsChapter 14 - Heat And Heat Transfer MethodsChapter 15 - ThermodynamicsChapter 16 - Oscillatory Motion And WavesChapter 17 - Physics Of HearingChapter 18 - Electric Charge And Electric FieldChapter 19 - Electric Potential And Electric FieldChapter 20 - Electric Current, Resistance, And Ohm's LawChapter 21 - Circuits, Bioelectricity, And Dc InstrumentsChapter 22 - MagnetismChapter 23 - Electromagnetic Induction, Ac Circuits, And Electrical TechnologiesChapter 24 - Electromagnetic WavesChapter 25 - Geometric OpticsChapter 26 - Vision And Optical InstrumentsChapter 27 - Wave OpticsChapter 28 - Special RelativityChapter 29 - Introduction To Quantum PhysicsChapter 30 - Atomic PhysicsChapter 31 - Radioactivity And Nuclear PhysicsChapter 32 - Medical Applications Of Nuclear PhysicsChapter 33 - Particle PhysicsChapter 34 - Frontiers Of Physics
Sample Solutions for this Textbook
We offer sample solutions for College Physics homework problems. See examples below:
Chapter 1, Problem 1CQChapter 2, Problem 1CQGiven: The given figure is, Figure (1) Formula used: The velocity of particle is given as, v=ΔxΔt...Chapter 3, Problem 1CQGiven: The given table is, Height (m)Time...Chapter 4, Problem 1CQChapter 5, Problem 1CQChapter 6, Problem 1CQChapter 7, Problem 1CQ
Given: Distance traveled with rocket engine firing ( m)Payload final velocity (...Chapter 8, Problem 1CQGiven: The mass of the girl is m=40 kg. The mass of the platform is m=120 kg. The initial speed of...Introduction: An experiment can be performed in which the two carts will be placed on a straight...Given: The mass of puck A is mA=200 g. The mass of puck B is mB=800 g. Formula used: The initial...Given: Mass of A, ma=3m. Mass of B, mb=m. Velocity of mass A before collision, ua=12 m/s. Velocity...Given: Velocity of object A before collision, ua=4 m/s. Velocity of object B before collision, ub=−8...Given: The positions of two objects before and after collision are depicted in the following figure....Given: Mass of A is ma=1.0 kg. Mass of B is mb=3.0 kg. Initial velocity of mass A is ua=8 m/s....Given: Mass of A is ma=1.0 kg. Mass of B is mb=1.0 kg. Initial velocity of mass A is ua=4 m/s....Given: Let the mass of A be m1. The mass m2 of B is m2=2m1. The initial velocity of mass B is...Given: The mass A is moving in +x direction with an initial velocity, v1=15 m/s. The mass of B is,...Given: The mass of car A is, m1=2000 kg. The initial velocity of car A is, v1=38 m/s in the east...Chapter 9, Problem 1CQGiven: The mass of the bridge is, m=2500 kg. Formula used: The relation between the mass and weight...Given: The mass of the bridge is M=2500 kg. The mass of the car is m=900 kg. The distance of weight...Given: The mass of the woman is m1=50 kg. The acceleration due to gravity is g=9.8 m/s2. Formula...Given: Number of bricks in the wheel barrow is 20. Mass of each brick is 3 kg. Formula used: Write...Given: The weight of the dumbbell is w1=20 lb. Formula used: The relation between the mass and...Chapter 10, Problem 1CQChapter 11, Problem 1CQGiven info: The manometer along balloon and jar is shown below: Height of the liquid inside the...Given: Mass of brace, mb=150 kg Mass of load, ml=400 kg Formula used: The Force for the slave...Given info: The radius of volleyball increases by 10%. Formula used: Density is mass per unit volume...Given: Density of water, Volume of liquid, Formula Used: A polystyrene cube floating partially...Chapter 12, Problem 1CQGiven: Diameter of pipe =3.5cm Force= 320 N Rate of flowing water = 2.5m/s Pumped water level = 21m...Chapter 13, Problem 1CQChapter 14, Problem 1CQChapter 15, Problem 1CQChapter 16, Problem 1CQChapter 17, Problem 1CQGiven: The distance between bat and insect is 3.00 m. The temperatures at which echo times is to be...Given: Refer Table [17.8] The value of acoustic impedance of transducer material is, Zt=30.8×106...Given: The frequency of the car's horn is fhorn=200 Hz. Formula used: The expression for the...Given: The data length of an air column and a resonant frequency present when the column is struck...Chapter 18, Problem 1CQGiven: Point charges located at 1.00 cm, 5.00 cm, 8.00 cm and 14.0 cm along the x -axis. Formula...Given: Point charges located at 3.00, 8.00 and 11.0 cm along the x -axis. Formula used: Electric...Given: Four charges qa, qb, qc, qd placed at each corner of the square with side 5 cmhaving...Given: qb=+10.00μC qc=−5.00μC Side of an equilateral triangle 25.0 cm Formula used: E=Ebcosφ...Given: qa=+2.50 nC qb=−8.00 nC qc=+1.50 nC Point charges located at the corners of an equilateral...Formula used: The magnitude of the electrostatic force between two electrons isgiven by: FC=kq2r2...Introduction: The lines of forces are imaginary which signify amplitude and direction of an electric...Chapter 19, Problem 1CQGiven info: Charges q1=1 μCq2=−2 μCq3=3 μC Formula used: The potential energy is given by PE=−kq1q2d...Given: The charge of the particle is identical, that is, q=q. The impact of the second particle on...Chapter 20, Problem 1CQGiven: WireLengthDiameterWire 12m1cmWire 21m0.5 cmWire 31m1cm Formula used: Resistance in the wire...Given information: The given statement is a switch has a variable resistance that is nearly zero...Given information: The given figure is Introduction: Kirchhoff's junction rule states that the sum...Given information: The given figure is Formula used: Kirchhoff's second rule states that in a closed...Given information: The given figure is Introduction: Ammeter is connected in series in the circuit...Given information: The given figure is Introduction: Kirchhoff's second rule states that in a closed...Given information: The given figure is Concept Introduction: Kirchhoff's second rule states that in...Given information: The voltage of alkaline cell is 1.585 V. An internal resistance is 0.100Ω....Given information: Figure shows how a bleeder resistor is used to discharge a capacitor after an...Given: Parallel combination of two 20 Ω and one 10 Ω resistors is connected in series with a 4Ω...Chapter 22, Problem 1CQGiven: Current carrying wire is placed at the vertices of an equilateral triangle of side 10.0 cm=...Given: A pendulum is set up so that its bob swings between the poles of permanent magnet. Charge on...Chapter 23, Problem 1CQGiven information: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power...Chapter 24, Problem 1CQChapter 25, Problem 1CQChapter 26, Problem 1CQChapter 27, Problem 1CQIntroduction: The resultant amplitude of two waves with equal amplitude is given by A2=2A12(1+cosδ)...Given: The nth -order diffraction angle for the longest wavelength is, θl1=53.13°. The longest...Chapter 28, Problem 1CQGiven: The Relativistic energy is E, Themomentum is p, The rest mass is m0 The speed of light is c....Chapter 29, Problem 1CQChapter 30, Problem 1CQGiven: The wavelength of first photon is λ1=121.6 nm. The wavelength of second photon is λ2=102.6...Given: The energy of the level 2 is E2=−3.4 eV. The energy of the level 3 is E3=−1.5 eV. Formula...Chapter 31, Problem 1CQChapter 32, Problem 1CQIntroduction: The formation of one or more different atomic nuclei and the subatomic particles by...Given: The reaction of nuclear fission is n01+U92235→U92236→B56141a +Ky92r + x n01 Formula Used: An...Chapter 33, Problem 1CQChapter 34, Problem 1CQ
More Editions of This Book
Corresponding editions of this textbook are also available below:
COLLEGE PHYSICS (OER)
1st Edition
ISBN: 9781947172012
COLLEGE PHYSICS
2nd Edition
ISBN: 9781711470832
COLLEGE PHYSICS
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ISBN: 2810014673880
College Physics for AP Courses
1st Edition
ISBN: 9781630181871
College Physics
1st Edition
ISBN: 9781938168048
College Physics For Ap® Courses
16th Edition
ISBN: 9781938168932
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