1 Patterns Of Motion And Equilibrium 2 Newton's Laws Of Motion 3 Momentum And Energy 4 Gravity, Projectiles, And Satellites 5 Fluid Mechanics 6 Thermal Energy And Thermodynamics 7 Heat Transfer And Change Of Phase 8 Static And Current Electricity 9 Magnetism And Electromagnetic Induction 10 Waves And Sound 11 Light 12 Atoms And The Periodic Table 13 The Atomic Nucleus And Radioactivity 14 Elememts Of Chemistry 15 How Atoms Bond And Molecules Attract 16 Mixtures 17 How Chemicals React 18 Two Classes Of Chemical Reactions 19 Organic Compounds 20 Rocks And Minerals 21 Plate Tectonics And Earth's Interior 22 Shaping Earth's Surface 23 Geologic Time - Reading The Rock Record 24 The Oceans, Atmosphere, And Climatic Effects 25 Driving Forces Of Weather 26 The Solar System 27 Stars And Galaxies 28 The Structure Of Space And Time expand_more
Chapter Questions expand_more
Problem 1RCQ: How does the range of refrigerator magnets differ from that of common bar magnets? Problem 2RCQ Problem 3RCQ Problem 4RCQ Problem 5RCQ: What two kinds of motion are exhibited by electrons in an atom? Problem 6RCQ: What is a magnetic domain? Problem 7RCQ: Why is iron magnetic and wood not magnetic?. Problem 8RCQ Problem 9RCQ: What happens to the direction of the magnetic field about an electric current when the direction of... Problem 10RCQ: Why is the magnetic field strength inside a current-carrying loop of wire greater than the field... Problem 11RCQ: How is the strength of the magnetic field in a current-carrying coil affected when a piece of iron... Problem 12RCQ: In what direction relative to a magnetic field does a charged particle move in order to experience... Problem 13RCQ: What effect does Earths magnetic field have on the intensity of cosmic rays striking Earths surface? Problem 14RCQ: What relative direction between a magnetic field and a current-carrying wire results in the greatest... Problem 15RCQ Problem 16RCQ: What is a galvanometer called when it is calibrated read current? To read voltage? Problem 17RCQ: Is it correct to say that an electric motor is a simple extension of the physics that underlies a... Problem 18RCQ: What important discovery did physicists Michael Faraday and Joseph Henry make? Problem 19RCQ: State Faradays law. Problem 20RCQ: What are the three ways in which voltage can be induced in a loop of wire? Problem 21RCQ: How does the frequency of induced voltage compare with how frequently a magnet is plunged into and... Problem 22RCQ: What are the basic differences and similarities between a generator and an electric motor? Problem 23RCQ: Is the current that is produced by a common generator ac or dc? Problem 24RCQ: What commonly supplies the energy input to a turbine? Problem 25RCQ: Is it correct to say that a generator produces energy? Defend your answer. Problem 26RCQ: Is it correct to say that a transformer boosts electric energy? Defend your answer. Problem 27RCQ: Which of these does a transformer change: voltage, current, energy, power? Problem 28RCQ: What is induced by the rapid alternation of a magnetic field? Problem 29RCQ: What is induced by the rapid alternation of an electric field? Problem 30RCQ: What important connection did Maxwell discover between electric and magnetic fields? Problem 35PAC: PLUG AND CHUG (FORMULA FAMILIARIZATION)... Problem 36PAC: PLUG AND CHUG (FORMULA FAMILIARIZATION)... Problem 37TAS: A video game console requires 6 V to operate correctly. A transformer allows the device to be... Problem 38TAS: A model electric train requires 6 V to operate. When it is connected to a 120-V household circuit, a... Problem 39TAS: A transformer for a laptop computer converts a 120-V input to a 24-V output. Show that the primary... Problem 40TAS: Show that if the output current for the transformer in the previous problem is 1.8 A, the input... Problem 41TAS: A transformer has an input of 6 V and an output of 36 V. Show that if the input is changed to 12 V,... Problem 42TAS: An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12-V ac is... Problem 43TAS: Neon signs require about 12,000 Y for their operation. Consider a neon-sign transformer that... Problem 44TAS: A power of 100 kW (105W) is delivered to the other side of a city by a pair of power lines, between... Problem 45TAR: Bar magnets are moved into the wire coils in identical quick fashion. Voltage induced in each coil... Problem 46TAR: Each of the transformers shown below powered with 100 W, and all have 100 turns on the primary. The... Problem 47E: Many dry cereals are fortified with iron, which is added to the cereal in the form of small iron... Problem 48E: If you place a chunk of iron near the north pole of a magnet, attraction occurs. Why will attraction... Problem 49E: How do the magnetic poles of refrigerator magnets differ from those of bar magnets? Problem 50E Problem 51E: What kind of force field surrounds a stationary electric charge? What additional field surrounds is... Problem 52E Problem 53E: All atoms have moving electric charges. Why, they aren't all materials magnetic? Problem 54E: Will either pole of a magnet attract a paper clip? Explain what is happening inside the attracted... Problem 55E: A friend tells you that aluminum lies beneath the layer of white plastic on a refrigerator door. How... Problem 56E: Magnet A has twice the magnetic field strength of magnet B and at a certain distance it pulls on... Problem 57E Problem 58E: To make a compass point an ordinary iron nail along the direction of Earths magnetic field (which,... Problem 59E: Nails sticking to a magnet is understandable. But why are other nails attracted to the stuck nails,... Problem 60E: When steel naval ships are built, the location of the shipyard and the orientation of the ship while... Problem 61E: How do force field lines for gravitation about a plane differ from force field line for magnetism... Problem 62E: Can an electron at rest in a magnetic field be set into motion by the magnetic field? What if the... Problem 63E: When a current-carrying wire is placed in a strong magnetic field, no force acts on the wire. What... Problem 64E: Two charged particles are projected into a magnetic field that is perpendicular to their velocities.... Problem 65E: In Figure 9.17, we see a magnet exerting a force on a current carrying wire. Does a current-carrying... Problem 66E: Residents of northern Canada are bombarded by more intense cosmic radiation than are residents of... Problem 67E: When doing spacewalks, why do astronauts keep to altitudes beneath the Van Allen radiation belts? Problem 68E: What changes in cosmic-ray intensity at Earths surface would you expect during periods in which... Problem 69E Problem 70E: Historically, replacing dirt roads with paved roads reduced rolling friction between vehicles and... Problem 71E: A common pickup for on electric guitar consists of a coil of wire around a small permanent magnet,... Problem 72E: When Tim pushes the wire between the poles of the magnet, the galvanometer registers a pulse. When... Problem 73E: At the airport security area you walk through a metal detector, which consists of a weak ac magnetic... Problem 74E: If your metal car moves over a wide, closed loop of wire embedded in a road surface, is Earths... Problem 75E: Two separate but similar coils of wire are mounted close to each other, as shown below. The first... Problem 76E: Why will more voltage be induced with the apparatus shown above if an iron core is inserted in the... Problem 77E: Why is a generator armature harder to rotate when it is connected to a circuit and supplying... Problem 78E: Does a cyclist coast farther if the headlamp connected the bike generator is turned off? Explain. Problem 79E: How do the input and output parts of a generator and a motor compare? Problem 80E: Your friend says that if you crank the shaft of a dc motor manually, the motor becomes a dc... Problem 81E: Correct the statement that a generator produces energy. Problem 82E: Discuss what is wrong with the following scheme: To generate electricity without fuel, arrange a... Problem 83E: What is wrong with the statement that a very efficient generator can produce more power output than... Problem 84E: Why will a transformer not work in a dc circuit? Problem 85E: What is the principal difference between a step-up transformer and a step-down transformer? Problem 86E: In what sense can a transformer be viewed as an electrical lever? What does it multiply? What does... Problem 87E: Can an efficient transformer step up energy? Defend your answer. Problem 88E: A friend says that changing electric and magnetic fields generate one another, and this gives rise... Problem 89E: Would electromagnetic waves exist if changing magnetic fields could produce electric fields but... Problem 90E: Your physics instructor drops a magnet through a long vertical copper pipe, and it moves slowly... Problem 91E: This exercise is similar to the previous one. Why will a bar magnet fall more slowly and reach... Problem 92DQ: Discuss why a motor also tends to act as a generator. Problem 93DQ: Both the English physicist Michael Faraday and the American physicist Joseph Henry independently... Problem 94DQ: One method for making a compass is to stick a magnetized needle into a piece of cork and float it in... Problem 95DQ: Your lab partner says, An electron always experiences a force in an electric field, but not always... Problem 96DQ: In a mass spectrometer, ions are directed into a magnetic field, where they curve around in the... Problem 97DQ: A cyclotron is a device for accelerating charged particles to high speeds as they follow an... Problem 98DQ: A beam of high-energy protons emerges from a cyclotron. Discuss the magnetic field associated with... Problem 99DQ: A magnetic field can deflect a beam of electrons, but it cannot do work on the electrons to change... Problem 100DQ: When Fred Cauthen releases the sheet of copper, why does it come to a halt as it begins its swing... Problem 101DQ: A piece of plastic tape coated with iron oxide is magnetized more in some parts than in others. When... Problem 102DQ: If you place a metal ring in a region where a magnetic field is rapidly alternating, the ring may... Problem 103DQ: How could a light bulb near an electromagnet, but not touching it, be lit? Is ac or dc required?... Problem 104DQ: Why can a hum usually be heard when a transformer is operating? Problem 105DQ Problem 106DQ: A magician places an aluminum ring on a table, underneath which there is a hidden electromagnet.... Problem 107DQ: Do a pair of parallel current-carrying wires exert forces on each other? Problem 1RAT: Choose the BEST way to complete the statement. 1. The source of all magnetism is (a) tiny bits of... Problem 2RAT: Surrounding moving electric charges are (a) electric fields. (b) magnetic fields. (c) both of these... Problem 3RAT Problem 4RAT: A magnetic force acting on a beam of electrons can change (a) only the direction of the beam. (b)... Problem 5RAT: When you move a bar magnet to and fro, first thrusting it into, and then withdrawing it from, a coil... Problem 6RAT: The principle underlying the operation of an electric motor is that (a) electric and magnetic fields... Problem 7RAT: The essential physics concept in the operation of an electric generator is (a) Coulombs law. (b)... Problem 8RAT: A transformer works in accordance with (a) Coulombs law. (b) Ohms law. (c) Faradays law. (d) Newtons... Problem 9RAT: A step-up transformer in an electric circuit can step up (a) voltage. (b) energy. (c) both of these... Problem 10RAT format_list_bulleted
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