Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN: 9781305116399
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 30, Problem 30.8CQ
Why does hitting a magnet with a hammer cause the magnetism to be reduced?
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Chapter 30 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 30 - Consider the magnetic field due to the current in...Ch. 30 - A loose spiral spring carrying no current is hung...Ch. 30 - Prob. 30.3QQCh. 30 - Prob. 30.4QQCh. 30 - Consider a solenoid that is very long compared...Ch. 30 - Prob. 30.1OQCh. 30 - In Figure 30.7, assume I1 = 2.00 A ami I2 = 6.00...Ch. 30 - Answer each question yes or no. (a) Is it possible...Ch. 30 - Two long, parallel wires each carry the same...Ch. 30 - Two long, straight wires cross each other at a...
Ch. 30 - A long, vertical, metallic wire carries downward...Ch. 30 - Suppose you are facing a tall makeup mirror on a...Ch. 30 - A long, straight wire carries a current I (Fig....Ch. 30 - Prob. 30.9OQCh. 30 - Consider the two parallel wires carrying currents...Ch. 30 - What creates a magnetic Hold? More than one answer...Ch. 30 - A long solenoid with closely spaced turns carries...Ch. 30 - A uniform magnetic field is directed along the x...Ch. 30 - Rank the magnitudes of the following magnetic...Ch. 30 - Solenoid A has length L and N turns, solenoid B...Ch. 30 - Is the magnetic field created by a current loop...Ch. 30 - One pole of a magnet attracts a nail. Will the...Ch. 30 - Prob. 30.3CQCh. 30 - A hollow copper tube carries a current along its...Ch. 30 - Imagine you have a compass whose needle can rotate...Ch. 30 - Prob. 30.6CQCh. 30 - A magnet attracts a piece of iron. The iron can...Ch. 30 - Why does hitting a magnet with a hammer cause the...Ch. 30 - The quantity B ds in Amperes law is called...Ch. 30 - Figure CQ30.10 shows four permanent magnets, each...Ch. 30 - Explain why two parallel wires carrying currents...Ch. 30 - Consider a magnetic field that is uniform in...Ch. 30 - Review. In studies of the possibility of migrating...Ch. 30 - In each of parts (a) through (c) of Figure P30.2....Ch. 30 - Calculate the magnitude of the magnetic field at a...Ch. 30 - Calculate the magnitude of the magnetic field at a...Ch. 30 - Prob. 30.5PCh. 30 - In Niels Bohrs 1913 model of the hydrogen atom, an...Ch. 30 - Prob. 30.7PCh. 30 - A conductor consists of a circular loop of radius...Ch. 30 - Two long, straight, parallel wires carry currents...Ch. 30 - Prob. 30.10PCh. 30 - Prob. 30.11PCh. 30 - Consider a flat, circular current loop of radius R...Ch. 30 - A current path shaped as shown in Figure P30.13...Ch. 30 - One long wire carries current 30.0 A to the left...Ch. 30 - Prob. 30.15PCh. 30 - In a long, .straight, vertical lightning stroke,...Ch. 30 - Determine the magnetic field (in terms of I, a,...Ch. 30 - Prob. 30.18PCh. 30 - Determine the magnetic field (in terms of I, a,...Ch. 30 - Two long, parallel wires carry currents of I1 =...Ch. 30 - Two long, parallel conductors, separated by 10.0...Ch. 30 - Prob. 30.22PCh. 30 - Prob. 30.23PCh. 30 - Prob. 30.24PCh. 30 - Prob. 30.25PCh. 30 - In Figure P30.25, the current in the long,...Ch. 30 - Two long, parallel wires are attracted to each...Ch. 30 - Why is the following situation impossible? Two...Ch. 30 - Prob. 30.29PCh. 30 - Niobium metal becomes a superconductor when cooled...Ch. 30 - Figure P30.31 Is a cross-sectional view of a...Ch. 30 - The magnetic coils of a tokamak fusion reactor are...Ch. 30 - A long, straight wire lies on a horizontal table...Ch. 30 - An infinite sheet of current lying in the yz plane...Ch. 30 - The magnetic field 40.0 cm away from a long,...Ch. 30 - A packed bundle of 100 long, straight, insulated...Ch. 30 - Prob. 30.37PCh. 30 - Prob. 30.38PCh. 30 - Prob. 30.39PCh. 30 - A certain superconducting magnet in the form of a...Ch. 30 - A long solenoid that has 1 000 turns uniformly...Ch. 30 - You are given a certain volume of copper from...Ch. 30 - A single-turn square loop of wire, 2.00 cm on each...Ch. 30 - A solenoid 10.0 cm in diameter and 75.0 cm long is...Ch. 30 - It is desired to construct a solenoid that will...Ch. 30 - Prob. 30.46PCh. 30 - A cube of edge length l=2.50 cm is positioned as...Ch. 30 - A solenoid of radius r = 1.25 cm and length =...Ch. 30 - The magnetic moment of the Earth is approximately...Ch. 30 - At saturation, when nearly all the atoms have...Ch. 30 - A 30.0-turn solenoid of length 6.00 cm produces a...Ch. 30 - Prob. 30.52APCh. 30 - Suppose you install a compass on the center of a...Ch. 30 - Why is the following situation impossible? The...Ch. 30 - A nonconducting ring of radius 10.0 cm is...Ch. 30 - Prob. 30.56APCh. 30 - Prob. 30.57APCh. 30 - A circular coil of five turns and a diameter of...Ch. 30 - A very large parallel-plate capacitor has uniform...Ch. 30 - Two circular coils of radius R, each with N turns,...Ch. 30 - Prob. 30.61APCh. 30 - Two circular loops are parallel, coaxial, and...Ch. 30 - Prob. 30.63APCh. 30 - Prob. 30.64APCh. 30 - As seen in previous chapters, any object with...Ch. 30 - Review. Rail guns have been suggested for...Ch. 30 - Prob. 30.67APCh. 30 - An infinitely long, straight wire carrying a...Ch. 30 - Prob. 30.69CPCh. 30 - We have seen that a long solenoid produces a...Ch. 30 - Prob. 30.71CPCh. 30 - Prob. 30.72CPCh. 30 - A wire carrying a current I is bent into the shape...Ch. 30 - Prob. 30.74CPCh. 30 - Prob. 30.75CPCh. 30 - Prob. 30.76CPCh. 30 - The magnitude of the force on a magnetic dipole ...
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- 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_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_forwardImagine you have a compass whose needle can rotate vertically as well as horizontally. Which way would the compass needle point if you were at the Earths north magnetic pole?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_forwardDoes increasing the magnitude of a uniform magnetic field through which a charge is traveling necessarily mean increasing the magnetic force on the charge? Does changing the direction of the field necessarily mean a change in the force on the charge?arrow_forwardAn electron moves in a circular path perpendicular to a constant magnetic field of magnitude 1.00 mT. The angular momentum of the electron about the center of the circle is 4.00 1025 kg m2/s. Determine (a) the radius of the circular path and (b) the speed of the electron.arrow_forward
- If a cosmic ray proton approaches the Earth from outer space along a line toward the center of the Earth that lies in the plane of the equator, in what direction will it be deflected by the Earth’s magnetic field? What about an electron? A neutron?arrow_forwardAn electron moving along the +x -axis at 5.0106m/s enters a magnetic field that makes a 75° angle with the x-axis of magnitude 0,20 T. Calculate the (a) pitch and (b) radius of tire trajectory.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_forward
- If a charged particle moves in a straight line, can you conclude that there is no magnetic field present?arrow_forwardA current of 1.5 A flows through the windings of a large, thin toroid with 200 turns per meter. If the toroid is filled with iron for which =3.0103 , what is the magnetic field within it?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_forward
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Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY