Conceptual Physics: The High School Physics Program
9th Edition
ISBN: 9780133647495
Author: Paul G. Hewitt
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 37, Problem 8A
Why is the voltage induced in an alternator AC rather than DC?
Expert Solution & Answer
To determine
To Explain: Voltage induced in an alternator AC but not in DC.
Answer to Problem 8A
The voltage induced in an alternator AC because the magnetic field increases and turn is decreases.
Explanation of Solution
Introduction: Alternative voltage is a voltage that changes its direction in regular or each cycle.
Alternative voltage or alternative current is induced in rotating armature of a generator. Alternative voltage is induced because as the magnetic field increases, it decreases each turn.
Conclusion: As in the rotating armature magnetic field increase, each turn decrease, this induced the voltage.
Chapter 37 Solutions
Conceptual Physics: The High School Physics Program
Ch. 37 - What did Michael Faraday and Joseph Henry...Ch. 37 - How can voltage be induced in a wire with the help...Ch. 37 - A magnet moved into a coil of wire will induce...Ch. 37 - Why is it more difficult to move a magnet into a...Ch. 37 - Current, as well as voltage, can be induced in a...Ch. 37 - How does the frequency of a changing magnetic...Ch. 37 - What is a generator, and how does it differ from a...Ch. 37 - Why is the voltage induced in an alternator AC...Ch. 37 - The armature of a generator must rotate in order...Ch. 37 - A motor is characterized by three main...
Ch. 37 - What does a transformer actually...Ch. 37 - What does a step-up transformer step up—voltage,...Ch. 37 - How does the relative number of turns on the...Ch. 37 - If the number of secondary turns is 10 times the...Ch. 37 - Prob. 15ACh. 37 - Why is it advantageous to transmit electric power...Ch. 37 - What fundamental quantity underlies the concepts...Ch. 37 - Distinguish between Faradays law expressed in...Ch. 37 - How do the wave speeds compare for high-frequency...Ch. 37 - Prob. 20ACh. 37 - The magnets are moved into the wire coils in...Ch. 37 - The transformers are all powered with 100 W, and...Ch. 37 - When Tim pushes the wire down between the poles of...Ch. 37 - A common pickup for an electric guitar consists of...Ch. 37 - Two separate but similar coils of wire are mounted...Ch. 37 - If you place a metal ring in a region in where a...Ch. 37 - A magician places an aluminum ring on a table,...Ch. 37 - How could you light a lightbulb that is near, yet...Ch. 37 - What is the basic difference between an electric...Ch. 37 - With no magnets around, why will current flow in a...Ch. 37 - What is the source of all electromagnetic waves?Ch. 37 - Why is a generator armature more difficult to...Ch. 37 - Your classmate says that, if you crank the shaft...Ch. 37 - Some bicycles have electric generators that are...Ch. 37 - An electric hair drier running at normal speed...Ch. 37 - When a piece of plastic tape coated with iron...Ch. 37 - Why is it important that the core of a transformer...Ch. 37 - Why can a hum often be heard when a transformer is...Ch. 37 - When a strip of magnetic material, variably...Ch. 37 - If a car made of iron and steel moves over a wide...Ch. 37 - Prob. 41ACh. 37 - How could you move a conducting loop of wire...Ch. 37 - Why does a transformer require alternating...Ch. 37 - How does the current in the secondary of a...Ch. 37 - In what sense can a transformer be thought of as...Ch. 37 - Can an efficient transformer step up energy?...Ch. 37 - A friend says that changing electric and magnetic...Ch. 37 - Would electromagnetic waves exist if changing...Ch. 37 - When a bar magnet is dropped through a vertical...Ch. 37 - What is wrong with this scheme? To generate...Ch. 37 - An electromagnet A with a coil of 10 turns...Ch. 37 - An electric doorbell requires 12 volts to operate...Ch. 37 - A model electric train requires 6 V to operate....Ch. 37 - If the output current for the above transformer is...Ch. 37 - A transformer has an input of 9 volts and an...Ch. 37 - A model electric train requires a low voltage to...Ch. 37 - Prob. 57ACh. 37 - Prob. 58ACh. 37 - Neon signs require about 12,000 V for their...
Additional Science Textbook Solutions
Find more solutions based on key concepts
37. A large beaker of water is filled to its rim with water. A block of wood is then carefully lowered into the...
College Physics: A Strategic Approach (3rd Edition)
Acetobacter is necessary for only one of the steps of vitamin C manufacture. The easiest way to accomplish this...
Microbiology: An Introduction
What type of unconformity separates layer G from layer F?
Applications and Investigations in Earth Science (9th Edition)
4. What five specific threats to biodiversity are described in this chapter? Provide an example of each.
Biology: Life on Earth (11th Edition)
Johnny was vigorously exercising the only joints in the skull that are freely movable. What would you guess he ...
Anatomy & Physiology (6th Edition)
17. For the reaction shown, calculate how many moles of form when each amount of reactant completely reacts.
a...
Introductory Chemistry (6th Edition)
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
- You're on an interplanetary mission, in an orbit around the Sun. Suppose you make a maneuver that brings your perihelion in closer to the Sun but leaves your aphelion unchanged. Then you must have Question 2 options: sped up at perihelion sped up at aphelion slowed down at perihelion slowed down at aphelionarrow_forwardThe force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!arrow_forwardThe force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!arrow_forward
- No chatgpt pls will upvotearrow_forwardThe force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!arrow_forwardNo chatgpt pls will upvotearrow_forward
- No chatgpt pls will upvotearrow_forwardSolve and answer the question correctly please. Thank you!!arrow_forward་ The position of a particle is described by r = (300e 0.5t) mm and 0 = (0.3t²) rad, where t is in seconds. Part A Determine the magnitude of the particle's velocity at the instant t = 1.5 s. Express your answer to three significant figures and include the appropriate units. v = Value Submit Request Answer Part B ? Units Determine the magnitude of the particle's acceleration at the instant t = 1.5 s. Express your answer to three significant figures and include the appropriate units. a = Value A ? Unitsarrow_forward
- Solve and answer the question correctly please. Thank you!!arrow_forwardSolve and answer the question correctly please. Thank you!!arrow_forwardA spiral transition curve is used on railroads to connect a straight portion of the track with a curved portion. (Figure 1) Part A v = v₁ft/s 600 ft y = (106) x³ If the spiral is defined by the equation y = (106)³, where x and y are in feet, determine the magnitude of the acceleration of a train engine moving with a constant speed of v₁ = 30 ft/s when it is at point x = 600 ft. Express your answer to three significant figures and include the appropriate units. ? a = Value Unitsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Introduction To Alternating Current; Author: Tutorials Point (India) Ltd;https://www.youtube.com/watch?v=0m142qAZZpE;License: Standard YouTube License, CC-BY