College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 21, Problem 59GP
** You have a 12-V battery, some wire, a switch, and a separate coil of wire. (a) Design a circuit that will produce an emf around the coil even though it is not connected to the battery. (b) Show, using appropriate equations, why your system will work. (c) Describe one application for your circuit.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A primary coil of a transformer in a toy electric car has 300 turns and the secondary coil has 30 turns. How many volts will be induced when the primary coil is connected to a 9 V battery? The document you upload for this should show how you solved the problem as well as the final answer and correct unit for the answer.
Is this a step-up transformer or a step-down transformer? Explain how you know which type it is. The document should have a short description of how you know what type of transformer is being described in this prompt. Make sure to use complete sentences and to use proper language mechanics in your response.
Dont copy please
8- This technology uses an electric generator to convert mechanical energy that comes from wind/ flowing river into electrical energy. As the coil of wire in the generator spins, an output potential difference is induced.
Explain how the size of this induced potential difference varies as the coil of wire spins.
How can you oppose any variation in the current flowing through the circuit?
a
use a capacitor
b
use an inductor
c
use a switch
d
use a generator
Chapter 21 Solutions
College Physics
Ch. 21 - Review Question 21.1 Your friend thinks that...Ch. 21 - Review Question 21.2 You have a bar magnet and a...Ch. 21 - Review Question 21.3 What difficulty would occur...Ch. 21 - Review Question 21.4 Why do we write the law of...Ch. 21 - Review Question 21.5 How does the law of...Ch. 21 - Review Question 21.6 A capacitor in an electric...Ch. 21 - Prob. 7RQCh. 21 - Review Question 21.8 Explain how (a) an electric...Ch. 21 - 1. In which of the experiments with a loop and a...Ch. 21 - If you move the coil in Figure Q21.2 toward the N...
Ch. 21 - The magnetic flux through a 100-cm2 loop is...Ch. 21 - Your friend says that the emf induced in a coil...Ch. 21 - 5. A metal ring lies on a table. The S pole of a...Ch. 21 - 6. One coil is placed on lop of another The bottom...Ch. 21 - Two coils are placed next to each other flat on...Ch. 21 - 8. Two identical bar magnets are dropped...Ch. 21 - A windows metal frame is essentially a metal loop...Ch. 21 - Four identical loops move at the same velocity...Ch. 21 - A 12-V automobile battery provides the thousands...Ch. 21 - A respiration detector consists of a coil placed...Ch. 21 - A parallel plate capacitor and a lightbulb are...Ch. 21 - Prob. 14MCQCh. 21 - A bar magnet falling with the north pole facing...Ch. 21 - 16. An induction cooktop has a smooth surface When...Ch. 21 - Describe three common applications of...Ch. 21 - 18. Two rectangular loops A and B are near each...Ch. 21 - A simple metal detector has a coil with an...Ch. 21 - 20. Construct flux-versus-time and emf-versus-time...Ch. 21 - How is it possible to get a 2000-V emf from a...Ch. 21 - You connect a capacitor and a lightbulb in series...Ch. 21 - Prob. 23CQCh. 21 - * You and your friend are performing experiments...Ch. 21 - You decide to use a metal ring as an indicator of...Ch. 21 - * To check whether a lightbulb permanently...Ch. 21 - * Flashlight without batteries A flashlight that...Ch. 21 - You need to invent a practical application for a...Ch. 21 - * Detect burglars entering windows. Describe how...Ch. 21 - 7. * A coil connected to an ammeter can detect...Ch. 21 - * The B field in a region has a magnitude of 0.40...Ch. 21 - 9. EST How do you position a bicycle tire so that...Ch. 21 - * EST Estimate the magnetic flux through your head...Ch. 21 - 11. * Estimate the magnetic flux through the...Ch. 21 - Prob. 12PCh. 21 - 13. You have the apparatus shown in Figure P21.13....Ch. 21 - * You suggest that eddy currents can stop the...Ch. 21 - * Your friend thinks that an induced magnetic...Ch. 21 - The magnetic flux through three different coils is...Ch. 21 - 17. The magnetic flux through three different...Ch. 21 - 18. A magnetic field passing through two coils of...Ch. 21 - BIO Stimulating the brain in transcranial magnetic...Ch. 21 - * To measure a magnetic field produced by an...Ch. 21 - Prob. 21PCh. 21 - 22 * BIO Breathing monitor An apnea monitor for...Ch. 21 - 23. * A bar magnet induces a current in an -turn...Ch. 21 - * An experimental apparatus has two parallel...Ch. 21 - A Boeing 747 with a 65-m wingspan is cruising...Ch. 21 - Prob. 27PCh. 21 - 28. ** BIO EST Magnetic field and brain cells...Ch. 21 - * You need to test Faraday's law You have a...Ch. 21 - 30. * You build a coil of radius r (m) and place...Ch. 21 - * EST Generator for space station Astronauts on a...Ch. 21 - 35. * A toy electric generator has a 20-tum...Ch. 21 - 36. * A generator has a 450-turn coil that is 10...Ch. 21 - 39. * A generator has a 100-turn coil that rotates...Ch. 21 - Prob. 40PCh. 21 - * A rectangular wire loop is moving with constant...Ch. 21 - field that points into the page (Figure P21.42)....Ch. 21 - 43. The voltage across an AC power supply is given...Ch. 21 - 44. * The alternating current through a capacitor...Ch. 21 - * The alternating current through a solenoid is...Ch. 21 - 46. * The rms voltage of household AC in Europe is...Ch. 21 - Prob. 47PCh. 21 - Prob. 48PCh. 21 - 49. You need to build a transformer that can step...Ch. 21 - 50. Your home’s electric doorbell operates on 10...Ch. 21 - 51. A 9.0-V battery and switch are connected in...Ch. 21 - * You are fixing a transformer for a toy truck...Ch. 21 - 53. * A wire loop has a radius of 10 cm. A...Ch. 21 - BIO Hammerhead shark A hammerhead shark (Figure...Ch. 21 - ** You have a 12-V battery, some wire, a switch,...Ch. 21 - 61.* EST A sparker used to ignite lighter fluid in...Ch. 21 - * EST Design a magnetometer Your friend needs to...Ch. 21 - Prob. 63GPCh. 21 - 64 EST MRI Jose needs an MRI (magnetic resonance...Ch. 21 - * Magstripe reader A magstripe reader used to read...Ch. 21 - 66. Show that when a metal rod L meters long moves...Ch. 21 - 67. ** EST The Tower of Terror ride Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...Ch. 21 - BIO Magnetic induction tomography (MIT) Magnetic...
Additional Science Textbook Solutions
Find more solutions based on key concepts
12. A light rope is wrapped several times around a large wheel with a radius of 0.400 m. The wheel rotates in f...
College Physics (10th Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
Choose the best answer to each of the following. Explain your reasoning. We can be sure that variation in Earth...
The Cosmic Perspective Fundamentals (2nd Edition)
The vibration of a piano string can be described by an equation analogous to Equation 13.17. If the quantity an...
Essential University Physics: Volume 1 (3rd Edition)
13. When is energy most evident?
Conceptual Physical Science (6th Edition)
For a solid, we also define the linear thermal expansion coefficient, a, as the fractional increase in length p...
An Introduction to Thermal Physics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Analog meters use a galvanometer, which essentially consists of a coil of wire with a small resistance and a pointer with a scale attached. When current runs through the coil, the point turns; the amount the pointer turns is proportional to the amount of current running through the coil. Galvanometers can be used to make a voltmeter if a resistor is placed in series with the galvanometer. Consider a galvanometer that has a resistance of 25.00 and gives a full scale reading when a 50A current runs through it. The galvanometer is to be used to make an voltmeter that has a full scale reading of 10.00 V, as shown below. Recall that a voltmeter is connected in parallel with the component of interest, so the meter must have a high resistance or it will change the current running through the component, (a) What is the potential drop across the series resistor in the meter? (b) What is the resistance of the parallel resistor? Av = lo.oo varrow_forwardA particle accelerator sends highvelocity charged particles down an evacuated pipe. Explain how a coil of wire wrapped around the pipe could detect the passage of individual panicles. Sketch a graph of the voltage output of the coil as a single particle passes through it.arrow_forwardConstruct Your Own Problem Consider a double transformer to be used to create very large voltages. The device consists of two stages. The first is a transformer that produces a much larger output voltage than its input. The Output of the first transformer is used as input to a second transformer that further increases the voltage. Construct a problem in which you calculate the output voltage of the final stage based on the input voltage of the first Stage and the number of turns or loops in bath parts of both transformers (four coils in all). Also calculate the maximum output current of the final stage based on the input current. Discuss the possibility of power losses in the devices and the effect on the output current and power.arrow_forward
- This problem is a continuation of Problem 45. You are part of a team working in a machine parts mechanics shop. An important customer has asked your company to provide springs with a very precise force constant k. You devise the electrical circuit shown in Figure P25.45 to measure the spring constant of each of the springs to be provided to the customer. The circuit consists of two identical, parallel metal plates connected to identical metal springs, a switch, and a battery with emf V. With the switch open, the plates are uncharged, are separated by a distance d, and have a capacitance C. To provide a comparison value for the spring constant that you found in Problem 45, you slide a slab of material with dielectric constant and thickness t between the plates, so that it is in contact with one of the plates as shown in Figure P25.50. When the switch is closed, the plates become charged and attract each other. The distance between the plates changes by a factor f, after which the plates are in equilibrium between the spring forces and the attractive electric force between the plates. To keep the plates from going into oscillations, you hold each plate with insulating gloves as the switch is closed and apply a force on the plates that allows them to move together at a slow constant speed until they are at the equilibrium separation, at which point you can release the plates. Find an expression for the spring constant in terms of C, d, V, k, t, and f. Figure P25.50arrow_forwardAnalog meters use a galvanometer, which essentially consists of a coil of wire with a small resistance and a pointer with a scale attached. When current runs through the coil, the pointer turns; die amount the pointer turns is proportional to the amount of current running through the coil. Galvanometers can be used to make an ammeter if a resistor is placed in parallel with the galvanometer. Consider a galvanometer that has a resistance of 25.00and gives a full scale reading when a 50A current runs through it. The galvanometer is to be used to make an ammeter that has a full scale reading of 10.00 A, as shown below. Recall that an ammeter is connected in series with the circuit of interest, so all 10 A must tun through the meter, (a) What is the current through the parallel resistor in the meter? (b) What is the voltage across the parallel resistor? (c) What is the resistance of the parallel resistor?arrow_forwardCommon household appliances are rated at 110 V, but power companies deliver voltage in the kilovolt range and then step the voltage down using transformers to 110 V to be used in homes. You will learn in later chapters that transformers consist of many turns of wire, which warm up as current flows through them, wasting some of the energy that is given off as heat. This sounds inefficient. Why do the power companies transport electric power using this method?arrow_forward
- A cassette recorder uses a plug-in transformer to convert 120 V to 12.0 V, with a maximum current output of 200 mA. (a) What is the current input? (b) What is the power input? (c) Is this amount of power reasonable for a small appliance?arrow_forwardTransformers (cont.) Part E- The primary coil of a transformer has 200 turns and the secondary coil has 800 turns. The power supplied to the primary coil is 400 watts. What is the power generated in the secondary coil if it is terminated by a 20-ohm resistor? 20W 200W 400W 800W 8000W 16000W 32000W Part F- A transformer supplies 60 watts of power to a device that is rated at 20 volts. The primary coil is connected to a 120-volt ac source. What is the current I_1 in the primary coil? (Express answer in terms of amperes.) Part G- The voltage and the current in the primary coil of a nonideal transformer are 120 volts and 2.0 amperes. The voltage and the current in the secondary coil are 19.4 volts and 11.8 amperes. What is the efficiency eee of the transformer? The efficiency of a transformer is defined as the ratio of the output power to the input power, expressed as a percentage: e=100Pout/Pine=100Pout/Pin. (Express answer as a percentage.)arrow_forwardA transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? a. The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A b. The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A c. The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A d. The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A e. The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 Aarrow_forward
- The generator of a car idling at 1500 rpm produces 17.3 V . Part A What will the output be at a rotation speed of 2800 rpm , assuming nothing else changes? Express your answer to three significant figures and include the appropriate units.arrow_forwardA rectangular circuit containing a resistance R is pulled at a constant velocity v → away from a long, straight wire carrying a current I0 (see below). Derive an equation that gives the current induced in the circuit as a function of the distance x between the near side of the circuit and the wire.arrow_forwardYour physics professor is doing a demo to demonstrate Faraday’s law. He usesa 5m long wire of 10 Ohms total resistance, and he shapes it as a perfect square.Your professor places the loop in a plane perpendicular to a 2 Tesla uniformmagnetic field pointing from above into the plane of the loop. Then yourprofessor re-shaped the wire in five seconds from a square into a perfect circle.The new loop remains in the same plane.a. What is the magnitude of the average induced emf in the wire during thistime?b. Find the direction, and average magnitude of the current in the loopduring the deformation? Explain your reasoning.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY