Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Question
Chapter 9, Problem 52E
To determine
The magnitude of net force on a compass needle and explain the mechanism of alignment.
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Check out a sample textbook solutionChapter 9 Solutions
Conceptual Physical Science (6th Edition)
Ch. 9 - How does the range of refrigerator magnets differ...Ch. 9 - Prob. 2RCQCh. 9 - Prob. 3RCQCh. 9 - Prob. 4RCQCh. 9 - What two kinds of motion are exhibited by...Ch. 9 - What is a magnetic domain?Ch. 9 - Why is iron magnetic and wood not magnetic?.Ch. 9 - Prob. 8RCQCh. 9 - What happens to the direction of the magnetic...Ch. 9 - Why is the magnetic field strength inside a...
Ch. 9 - How is the strength of the magnetic field in a...Ch. 9 - In what direction relative to a magnetic field...Ch. 9 - What effect does Earths magnetic field have on the...Ch. 9 - What relative direction between a magnetic field...Ch. 9 - Prob. 15RCQCh. 9 - What is a galvanometer called when it is...Ch. 9 - Is it correct to say that an electric motor is a...Ch. 9 - What important discovery did physicists Michael...Ch. 9 - State Faradays law.Ch. 9 - What are the three ways in which voltage can be...Ch. 9 - How does the frequency of induced voltage compare...Ch. 9 - What are the basic differences and similarities...Ch. 9 - Is the current that is produced by a common...Ch. 9 - What commonly supplies the energy input to a...Ch. 9 - Is it correct to say that a generator produces...Ch. 9 - Is it correct to say that a transformer boosts...Ch. 9 - Which of these does a transformer change: voltage,...Ch. 9 - What is induced by the rapid alternation of a...Ch. 9 - What is induced by the rapid alternation of an...Ch. 9 - What important connection did Maxwell discover...Ch. 9 - PLUG AND CHUG (FORMULA FAMILIARIZATION)...Ch. 9 - PLUG AND CHUG (FORMULA FAMILIARIZATION)...Ch. 9 - A video game console requires 6 V to operate...Ch. 9 - A model electric train requires 6 V to operate....Ch. 9 - A transformer for a laptop computer converts a...Ch. 9 - Show that if the output current for the...Ch. 9 - A transformer has an input of 6 V and an output of...Ch. 9 - An ideal transformer has 50 turns in its primary...Ch. 9 - Neon signs require about 12,000 Y for their...Ch. 9 - A power of 100 kW (105W) is delivered to the other...Ch. 9 - Bar magnets are moved into the wire coils in...Ch. 9 - Each of the transformers shown below powered with...Ch. 9 - Many dry cereals are fortified with iron, which is...Ch. 9 - If you place a chunk of iron near the north pole...Ch. 9 - How do the magnetic poles of refrigerator magnets...Ch. 9 - Prob. 50ECh. 9 - What kind of force field surrounds a stationary...Ch. 9 - Prob. 52ECh. 9 - All atoms have moving electric charges. Why, they...Ch. 9 - Will either pole of a magnet attract a paper clip?...Ch. 9 - A friend tells you that aluminum lies beneath the...Ch. 9 - Magnet A has twice the magnetic field strength of...Ch. 9 - Prob. 57ECh. 9 - To make a compass point an ordinary iron nail...Ch. 9 - Nails sticking to a magnet is understandable. But...Ch. 9 - When steel naval ships are built, the location of...Ch. 9 - How do force field lines for gravitation about a...Ch. 9 - Can an electron at rest in a magnetic field be set...Ch. 9 - When a current-carrying wire is placed in a strong...Ch. 9 - Two charged particles are projected into a...Ch. 9 - In Figure 9.17, we see a magnet exerting a force...Ch. 9 - Residents of northern Canada are bombarded by more...Ch. 9 - When doing spacewalks, why do astronauts keep to...Ch. 9 - What changes in cosmic-ray intensity at Earths...Ch. 9 - Prob. 69ECh. 9 - Historically, replacing dirt roads with paved...Ch. 9 - A common pickup for on electric guitar consists of...Ch. 9 - When Tim pushes the wire between the poles of the...Ch. 9 - At the airport security area you walk through a...Ch. 9 - If your metal car moves over a wide, closed loop...Ch. 9 - Two separate but similar coils of wire are mounted...Ch. 9 - Why will more voltage be induced with the...Ch. 9 - Why is a generator armature harder to rotate when...Ch. 9 - Does a cyclist coast farther if the headlamp...Ch. 9 - How do the input and output parts of a generator...Ch. 9 - Your friend says that if you crank the shaft of a...Ch. 9 - Correct the statement that a generator produces...Ch. 9 - Discuss what is wrong with the following scheme:...Ch. 9 - What is wrong with the statement that a very...Ch. 9 - Why will a transformer not work in a dc circuit?Ch. 9 - What is the principal difference between a step-up...Ch. 9 - In what sense can a transformer be viewed as an...Ch. 9 - Can an efficient transformer step up energy?...Ch. 9 - A friend says that changing electric and magnetic...Ch. 9 - Would electromagnetic waves exist if changing...Ch. 9 - Your physics instructor drops a magnet through a...Ch. 9 - This exercise is similar to the previous one. Why...Ch. 9 - Discuss why a motor also tends to act as a...Ch. 9 - Both the English physicist Michael Faraday and the...Ch. 9 - One method for making a compass is to stick a...Ch. 9 - Your lab partner says, An electron always...Ch. 9 - In a mass spectrometer, ions are directed into a...Ch. 9 - A cyclotron is a device for accelerating charged...Ch. 9 - A beam of high-energy protons emerges from a...Ch. 9 - A magnetic field can deflect a beam of electrons,...Ch. 9 - When Fred Cauthen releases the sheet of copper,...Ch. 9 - A piece of plastic tape coated with iron oxide is...Ch. 9 - If you place a metal ring in a region where a...Ch. 9 - How could a light bulb near an electromagnet, but...Ch. 9 - Why can a hum usually be heard when a transformer...Ch. 9 - Prob. 105DQCh. 9 - A magician places an aluminum ring on a table,...Ch. 9 - Do a pair of parallel current-carrying wires exert...Ch. 9 - Choose the BEST way to complete the statement. 1....Ch. 9 - Surrounding moving electric charges are (a)...Ch. 9 - Prob. 3RATCh. 9 - A magnetic force acting on a beam of electrons can...Ch. 9 - When you move a bar magnet to and fro, first...Ch. 9 - The principle underlying the operation of an...Ch. 9 - The essential physics concept in the operation of...Ch. 9 - A transformer works in accordance with (a)...Ch. 9 - A step-up transformer in an electric circuit can...Ch. 9 - Prob. 10RAT
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- A charged particle is traveling through a uniform magnetic field. Which of the following statements are true of the magnetic field? There may be more than one correct statement. (a) It exerts a force on the particle parallel to the field. (b) It exerts a force on the particle along the direction of its motion. (c) It increases the kinetic energy of the particle. (d) It exerts a force that is perpendicular to the direction of motion. (e) It does not change the magnitude of the momentum of the particle.arrow_forwardWhat magnetic field is required in order to confine a proton moving with a speed of 4.0 × 106 m/s to a circular orbit of radius 10 cm?arrow_forwardAn electromagnet produces a magnetic field of magnitude 1.5 T throughout a cylindrical region of radius 6.0 cm. A straight wire carrying a current of 25 A passes through the field as shown in the accompanying figure. What is the magnetic force on the wire?arrow_forward
- Electrons in Earths upper atmosphere have typical speeds near 6.00 105 m/s. (a) Calculate the magnitude of Earths magnetic field if an electrons velocity is perpendicular to the magnetic field and its circular path has a radius of 7.00 102 m. (b) Calculate the number of times per second that an electron circles around a magnetic field line.arrow_forwardA cosmic-ray electron moves at 7.5 × 106 m/sinches perpendicular to Earth’s magnetic field at an altitude queer the field strength is 1.0 × 105T. What is the radius of the circular path the electron follows?arrow_forwardAround the geographic North Pole (or magnetic South Pole), Earth’s magnetic field is almost vertical. If an airplane is flying northward in this region, which side of the wing is positively charged and which is negatively charged?arrow_forward
- There are regions where the magnetic field of earth is almost perpendicular to the surface of Earth. What difficulty does this cause in the use of a compass?arrow_forwardJupiters magnetic field occupies a volume of space larger than the Sun and contains ionized particles ejected from sources including volcanoes on Io, one of Jupiters moons. A sulfur ion (S+) in Jupiters magnetic field has mass 5.32 1026 kg and kinetic energy 75.0 eV. (a) Find the maximum magnetic force on the ion from Jupiters magnetic field of magnitude 4.28 104 T. (b) Find the radius of the sulfur ions circular path, assuming its velocity is perpendicular to Jupiters magnetic field.arrow_forwardA cosmic-ray proton in interstellar space has an energy of 10.0 MeV and executes a circular orbit having a radius equal to that of Mercury’s orbit around the Sun (5.80 × 1010 m). What is the magnetic field in that region of space?arrow_forward
- A toroid has 250 trims of wire and carries a current of 20 A. Its inner and outer radii are 8.0 and 9.0 cm. What are the values of its magnetic field at r = 8.1, 8.5, and 8.9 cm?arrow_forwardWhat creates a magnetic field? More than one answer may be correct. (a) a stationary object with electric charge (b) a moving object with electric charge (c) a stationary conductor carrying electric current (d) a difference in electric potential (e) a charged capacitor disconnected from a battery and at rest. Note: In Chapter 24, we will see that a changing electric field also creates a magnetic field.arrow_forwardReview. A 30.0-g metal hall having net charge Q = 5.00 C is thrown out of a window horizontally north at a speed v = 20.0 m/s. The window is at a height h = 20.0 m above the ground. A uniform, horizontal magnetic field of magnitude B = 0.010 0 T is perpendicular to the plane of the balls trajectory and directed toward the west. (a) Assuming the ball follows the same trajectory as it would in the absence of the magnetic field, find the magnetic force acting on the ball just before it hits the ground. (b) Based on the result of part (a), is it justified for three-significant-digit precision to assume the trajectory is unaffected by the magnetic field? Explain.arrow_forward
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