Physics, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134020853
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 23, Problem 68PCE
The electric motor in a toy train requires a voltage of 4.5 V. Find the ratio of turns on the primary coil to turns on the secondary coil in a transformer that will step the 120-V household voltage down to 4.5 V.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A transformer consists of a 500-turn primary coil and a 2000-turn secondary coil. If the current in the
secondary is 3.0 A, what is the current in the primary?
A 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?
The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A
The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A
The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A
The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A
The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A
The primary coil of a transformer has 100 loops and is connected to a circuit with 120 volts (primary voltage). What is the output voltage (secondary voltage) if the secondary coil has 50 loops?
Chapter 23 Solutions
Physics, Books a la Carte Edition (5th Edition)
Ch. 23.1 - Which of the following situations results in an...Ch. 23.2 - What is the angle in the definition of magnetic...Ch. 23.3 - In system 1 the magnetic flux through a coil with...Ch. 23.4 - A metal ring moves to the right from a field-free...Ch. 23.5 - Suppose the speed of the rod in Example 23-8 is...Ch. 23.6 - Consider the electric generator shown in Figure...Ch. 23.7 - Prob. 7EYUCh. 23.8 - Consider the circuit shown in Figure 23-25. (a) Is...Ch. 23.9 - Is more energy stored in an inductor by doubling...Ch. 23.10 - If a transformer doubled both the voltage and the...
Ch. 23 - Explain the difference between a magnetic field...Ch. 23 - A metal ring with a break in its perimeter is...Ch. 23 - Many equal-arm balances have a small metal plate...Ch. 23 - Figure 23-29 shows a vertical iron rod with a wire...Ch. 23 - A metal rod of resistance R can slide without...Ch. 23 - Recently, NASA tested a power generation system...Ch. 23 - Explain what happens when the angular speed of the...Ch. 23 - A 0 085-T magnetic field passes through a circular...Ch. 23 - A uniform magnetic field of 0.0250 T points...Ch. 23 - A magnetic field is oriented at an angle of 67 to...Ch. 23 - MRI Solenoid The magnetic field produced by an MRI...Ch. 23 - Find the magnitude of the magnetic flux through...Ch. 23 - At a certain location, the Earths magnetic field...Ch. 23 - A solenoid with 385 turns per meter and a diameter...Ch. 23 - A single-turn square loop of side L is centered on...Ch. 23 - A bar magnet is inside a closed cubical box...Ch. 23 - A 0.65-T magnetic field is perpendicular to a...Ch. 23 - Prob. 11PCECh. 23 - Figure 23-33 shows the magnetic flux through a...Ch. 23 - One type of antenna for receiving AM radio signals...Ch. 23 - A wire loop is placed in a magnetic field that is...Ch. 23 - Figure 23-35 shows four different situations in...Ch. 23 - Predict/Calculate The magnetic flux through a...Ch. 23 - Prob. 17PCECh. 23 - A single conducting loop of wire has an area of...Ch. 23 - The area of a 120-turn coil oriented with its...Ch. 23 - An emf is induced in a conducting loop of wire...Ch. 23 - A magnetic field increases from 0 to 0.55 T in 16...Ch. 23 - Predict/Explain A metal ring is dropped into a...Ch. 23 - Predict/Explain A metal ring is dropped into a...Ch. 23 - Predict/Explain Figure 23-37 shows two metal disks...Ch. 23 - Predict/Explain (a) As the solid metal disk in...Ch. 23 - A bar magnet with its north pole pointing downward...Ch. 23 - A Wire Loop and a Magnet A loop of wire is dropped...Ch. 23 - Suppose we change the situation shown in Figure...Ch. 23 - Figure 23-39 shows a current-carrying wire and a...Ch. 23 - Consider the physical system shown in Figure...Ch. 23 - Prob. 31PCECh. 23 - Prob. 32PCECh. 23 - Prob. 33PCECh. 23 - A conducting rod slides on two wires in a region...Ch. 23 - A metal rod 0.95 m long moves with a speed of 2.4...Ch. 23 - Airplane emf A Boeing KC-135A airplane has a...Ch. 23 - Predict/Calculate Figure 23-42 shows a...Ch. 23 - Referring to part (a) of Problem 37, (a) find the...Ch. 23 - (a) Find the current that flows in the circuit...Ch. 23 - Suppose the mechanical power delivered to the rod...Ch. 23 - Prob. 41PCECh. 23 - A rectangular coil 25 cm by 45 cm has 150 turns....Ch. 23 - A 1 6-m wire is wound into a coil with a radius of...Ch. 23 - Shake Flashlight A shake flashlight uses the...Ch. 23 - Predict/Calculate A circular coil with a diameter...Ch. 23 - A generator is designed to produce a maximum emf...Ch. 23 - Prob. 47PCECh. 23 - Prob. 48PCECh. 23 - Prob. 49PCECh. 23 - Prob. 50PCECh. 23 - Prob. 51PCECh. 23 - Prob. 52PCECh. 23 - Prob. 53PCECh. 23 - A simple RL circuit includes a 0.125-H inductor....Ch. 23 - Prob. 55PCECh. 23 - Prob. 56PCECh. 23 - Prob. 57PCECh. 23 - Prob. 58PCECh. 23 - Prob. 59PCECh. 23 - Prob. 60PCECh. 23 - Prob. 61PCECh. 23 - Alcator Fusion Experiment In the Alcator fusion...Ch. 23 - Superconductor Energy Storage An engineer proposes...Ch. 23 - Prob. 64PCECh. 23 - Prob. 65PCECh. 23 - Prob. 66PCECh. 23 - Transformer 1 has a primary voltage Vp and a...Ch. 23 - The electric motor in a toy train requires a...Ch. 23 - Predict/Calculate A disk drive plugged into a...Ch. 23 - A transformer with a turns ratio...Ch. 23 - A neon sign that requires a voltage of 11,000 V is...Ch. 23 - A step-down transformer produces a voltage of 6.0...Ch. 23 - A step-up transformer has 30 turns on the primary...Ch. 23 - CE Predict/Explain An airplane flies level to the...Ch. 23 - CE You hold a circular loop of wire at the north...Ch. 23 - Prob. 76GPCh. 23 - Interstellar Magnetic Field The Voyager I...Ch. 23 - Prob. 78GPCh. 23 - BIO Electrognathography Computerized jaw tracking,...Ch. 23 - A rectangular loop of wire 24 cm by 72 cm is bent...Ch. 23 - Consider a rectangular loop of wire 6.8 cm by 9.2...Ch. 23 - Predict/Calculate A car with a vertical radio...Ch. 23 - The rectangular coils in a 355-tum generator are...Ch. 23 - A cubical box 22 cm on a side is placed in a...Ch. 23 - BIO MRI Scanner An MRI scanner is based on a...Ch. 23 - BIO Transcranial Magnetic Stimulation Transcranial...Ch. 23 - A magnetic field with the time dependence shown in...Ch. 23 - Prob. 88GPCh. 23 - Prob. 89GPCh. 23 - Prob. 90GPCh. 23 - BIO Blowfly Maneuvers Suppose the fly described in...Ch. 23 - Prob. 92GPCh. 23 - Predict/Calculate A single-turn rectangular loop...Ch. 23 - Prob. 94GPCh. 23 - Prob. 95GPCh. 23 - Loop Detectors on Roadways Smart traffic lights...Ch. 23 - A car drives onto a loop detector and increases...Ch. 23 - A truck drives onto a loop detector and increases...Ch. 23 - Loop Detectors on Roadways Smart traffic lights...Ch. 23 - Referring to Conceptual Example 23-6 Suppose the...Ch. 23 - Referring to Conceptual Example 23-6 Suppose the...Ch. 23 - Referring to Example 23-8 (a) What external force...Ch. 23 - Predict/Calculate Referring to Example 23-8...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. Given the observational evidence, it i...
Cosmic Perspective Fundamentals
What is the difference between cellular respiration and external respiration?
Human Physiology: An Integrated Approach (8th Edition)
APPLY 1.2 Express the following quantities in scientific notation
using fundamental SI units of mass and lengt...
Chemistry (7th Edition)
What are four functions of connective tissue?
Anatomy & Physiology (6th Edition)
78. A breaker of nitric acid is neutralized with calcium hydroxide. Write a balanced molecular equation and a n...
Introductory Chemistry (6th Edition)
Flask A contains yeast cells in glucose-minimal salts broth incubated at 30C with aeration. Flask B contains ye...
Microbiology: An Introduction
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
- What is the rate at which the current though a 0.30-H coil is changing if an emf of 0.12 V is induced across the coil?arrow_forwardA transformer consist of a primary coil connected to a 120 V source that drive 4 A of current through the primary and a secondary wire that contains 1/3 as many turns as the primary wire. What is the current in the secondary wire if the transformer is 80% efficient?arrow_forwardThe primary coil in an ideal transformer has 1000 turns of wire and an emf of 100 V. The secondary coil has an emf of 10 V. How many turns of wire does the secondary coil have? 100 1000 10,000 100,000arrow_forward
- A transformer has 400 turns on its secondary and 100 turns on its primary. the primary is connected to a 10-V source. what is the voltage output of the secondary? if 3 A flows in the primary coil, how much current is there in the secondary coil?arrow_forwardA generator supplies 100 V to a transformer’s primary coil, which has 50 turns. If the secondary coil has 500 turns, what is the secondary voltage?arrow_forwardA transformer has a primary voltage of 277 volts and a secondary voltage of 120 volts. What is the turns-ratio of this transformer?arrow_forward
- The primary coil of an ideal transformer provides 2000 V at 0.01 A. The secondary coil operates on 120 V. What current flows through the secondary coil?arrow_forwardA certain transformer has exactly 191 turns on its primary side and exactly 126 turns on its secondary side. If an AC voltage of 11.8 V is applied to the primary side, what voltage will appear on the secondary side?arrow_forwardA transformer has an input of 110 AC volts, with 100 turns on the primary and 10 turns on the secondary. What is the output voltage? Select one: O. 1100 Volts 110 Volts O11 Volts O O Voltsarrow_forward
- A transformer is created with a 200 V input and 1200 coils in the primary. If the output voltage is set to be 80 V, how many coils are needed in the secondary?arrow_forwardIn a transformer, a primary winding has 220V and 1A. If the second winding has 460V, what is the output current?Group of answer choices 2 A 0.1 A 0.5 A 0.9 Aarrow_forwardThe charger for a cell phone contains a transformer that reduce 120 V ac to 5.0 V ac to charge the 3.7 V battery. Suppose the secondary coil contains 30 turns and the charger supplies 700mA. Calculate the current in the primary coil.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Series & Parallel - Potential Divider Circuits - GCSE & A-level Physics; Author: Science Shorts;https://www.youtube.com/watch?v=vf8HVTVvsdw;License: Standard YouTube License, CC-BY