College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Textbook Question
Chapter 20, Problem 29P
* Pigeons A solenoid of radius 1.0 m with 750 turns and a length of 5.0 m surrounds a pigeon cage. What current must be in the solenoid so that the solenoid field just cancels Earth’s
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College Physics
Ch. 20 - Review Question 20.1 What aspects of compass...Ch. 20 - Review Question 20.2 What is the direction of the...Ch. 20 - Review Question 20.3 Equation (20.2) defines the...Ch. 20 - Review Question 20.4 If the magnetic force is...Ch. 20 - Review Question 20.5 The definition of a 1-A...Ch. 20 - Review Question 20.6 What is the difference...Ch. 20 - Review Question 20.7 Why is there a difference in...Ch. 20 - You place a metal bar magnet on a swivel and bring...Ch. 20 - 2. An electron moves at constant speed from left...Ch. 20 - 3. What is one tesla?
a.
b.
c.
d. All of the...
Ch. 20 - Choose all that apply. Objects that produce...Ch. 20 - 5. What is one difference between magnetic and...Ch. 20 - 6. Two parallel straight current-carrying wires...Ch. 20 - 7. Choose all of the units that are fundamental,...Ch. 20 - 8. Particles of various masses, charges, and...Ch. 20 - When a diamagnetic material Is placed in an...Ch. 20 - If you triple the speed of a particle entering a...Ch. 20 - In 1911 physicists measured a magnetic field...Ch. 20 - Describe two experiments that will allow you to...Ch. 20 - How can you determine if there is a magnetic field...Ch. 20 - You have a magnet on which the poles are not...Ch. 20 - 15. List as many ways as you can to detect a...Ch. 20 - Prob. 16CQCh. 20 - Prob. 17CQCh. 20 - An electron flies through the magnetic field shown...Ch. 20 - Prob. 19CQCh. 20 - 20. A beam of electrons is not deflected as it...Ch. 20 - 21 A beam of electrons moving toward the east is...Ch. 20 - 22. Why are residents of northern Canada less...Ch. 20 - Prob. 23CQCh. 20 - An electron enters a solenoid at a small angle...Ch. 20 - Two parallel wires carry electric current in the...Ch. 20 - Prob. 26CQCh. 20 - Describe a situation in which an electron will be...Ch. 20 - When a switch is closed a compass needle deflects...Ch. 20 - 2. You have a lightbulb connected to a battery....Ch. 20 - 3 The current through a circuit is shown in Figure...Ch. 20 - 4. Draw field lines for the magnetic field...Ch. 20 - 5. * You need to determine the direction of the ...Ch. 20 - 6.* Two compass needles are fixed at the ends of a...Ch. 20 - 7. * In Houston, Earth’s field has a magnitude of...Ch. 20 - * A 15-g 10-cm-long wire is suspended horizontally...Ch. 20 - Prob. 9PCh. 20 - * A metal rod is connected to a battery through...Ch. 20 - * After you turned on the current in the circuit...Ch. 20 - 13. ** A square coil with 30 turns has sides that...Ch. 20 - * (a) Determine the magnetic force (magnitude and...Ch. 20 - 16. * A 500-turn square coil of wire is hinged to...Ch. 20 - * Electric motor 1 An electric motor has a square...Ch. 20 - 18. ** You make a seesaw by placing a 50-g magnet...Ch. 20 - * Electric motor 2 An electric motor has a...Ch. 20 - 20. Each of the lettered dots a-d shown In Figure...Ch. 20 - Duck gets a lift A duck accumulates a positive...Ch. 20 - 22. An electron of mass kg moves horizontally...Ch. 20 - A 1000-kg car moves west along the equator. At...Ch. 20 - * BIO Magnetic force exerted by Earth on ions in...Ch. 20 - 105m/s. Design a magnetic shield that will deflect...Ch. 20 - s magnetic field.Ch. 20 - 27. * An electron and a proton, moving side by...Ch. 20 - An east-west electric power line carries a 500-A...Ch. 20 - * Pigeons A solenoid of radius 1.0 m with 750...Ch. 20 - * A horizontal current-carrying wire that is...Ch. 20 - Prob. 31PCh. 20 - field inside a long solenoid is given by the...Ch. 20 - * Electron current and magnetic field in H atom In...Ch. 20 - * Two long, parallel wires are separated by 2.0 m....Ch. 20 - * Minesweepers During World War II, explosive...Ch. 20 - 40. An electron moves at the speed of toward the...Ch. 20 - * Mass spectrometer A mass spectrometer has a...Ch. 20 - 42. * Mass spectrometer 2 One type of mass...Ch. 20 - 43. * An ion with charge C moves at speed m/s...Ch. 20 - * A box has either an electric field or a magnetic...Ch. 20 - 45. ** A piece of wire, shown in Figure P20.45 ,...Ch. 20 - 46. ** EST Particles in cosmic rays are mostly...Ch. 20 - BIO Magnetic resonance imaging In magnetic...Ch. 20 - BIO Magnetic resonance imaging In magnetic...Ch. 20 - BIO Power lines—do their magnetic fields pose a...Ch. 20 - BIO Magnetic resonance imaging In magnetic...Ch. 20 - BIO Magnetic resonance imaging In magnetic...Ch. 20 - BIO Magnetic resonance imaging In magnetic...Ch. 20 - BIO Power linesdo their magnetic fields pose a...Ch. 20 - BIO Power linesdo their magnetic fields pose a...Ch. 20 - BIO Power linesdo their magnetic fields pose a...Ch. 20 - BIO Power linesdo their magnetic fields pose a...Ch. 20 - BIO Power linesdo their magnetic fields pose a...
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- A conductor consists of a circular loop of radius K and two long, straight sections as shown in Figure P50.7. The wire lies in the plane of the paper and carries a current I. (a) What is the direction of the magnetic field at the center of the loop? (b) Find an expression for the magnitude of the magnetic field at the center of the loop.arrow_forwardReview A proton is accelerated from rest through a 5.00-V potential difference. a. What is the protons speed after it has been accelerated? b. What is the maximum magnetic field that this proton produces at a point that is 1.00 m from the proton?arrow_forwardAil electron is moving at a speed of 1.0 104 in/s in a circular path of radius 2.0 cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electrons path. Find (a) the strength of the magnetic field inside the solenoid and (b) the current in the solenoid if it has 25 turns per centimeter.arrow_forward
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