Tutorials In Introductory Physics: Homework
1st Edition
ISBN: 9780130662453
Author: Lillian C. McDermott, Peter S. Shaffer
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8.1, Problem 2bT
To understand the interaction between the wire loops and solenoids in section I. we can use the idea that a force is exerted on a charged particle moving in a magnetic field. In each of those cases there was an induced current when there was relative motion between the solenoid and the wire loop. In other situations such as the one above, however, there is an induced current in the wire loop even though there is no relative motion between the wire loop and the solenoid. There is a general rule called Lenz’ law that we can use in all cases to predict the direction of the induced current
B. Discuss the statement of Lenz’ law in your textbook with your partners. Make sure you understand how it is related to the statement by the student with whom you agreed in part D of section I.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Two parallel conducting rails a distance l apart are connected at one end by a resistance R in series with battery of emf E. A conducting bar completes the circuit, joining the two rails electrically but free to slide along them. The whole circuit is perpendicular to a uniform magnetic field B, as shown in (Figure 1). The bar is initially at rest, and nothing is pulling it.
Here is a long solenoid (coils of wire along a long cylinder) and an end view of the solenoid. Conventional current runs counterclockwise in the solenoid and is increasing with time. Choose from the following possible directions (shown in figure 2) to answer the following questions: what is the direction (a – h) of the electric field at location 1 (marked with X)? and what is the direction (a – h) of the electric field at location 2 (marked with X)?
The 24.7 cm wide, zero resistance slide wire shown in the diagram above is pushed toward the 6.89 Ω resistor at a steady speed of 0.894 m/s. The magnetic field strength is 0.771 T. How big (in N) is the pushing force? What is the magnitude of the induced current (in A)?
Chapter 8 Solutions
Tutorials In Introductory Physics: Homework
Ch. 8.1 - A copper wire loop is placed in a uniform magnetic...Ch. 8.1 - Suppose that the loop is now placed in the...Ch. 8.1 - In each of the diagram below, the position of a...Ch. 8.1 - D. State whether you agree or disagree with each...Ch. 8.1 - The diagram at right shows a stationary, copper...Ch. 8.1 - To understand the interaction between the wire...Ch. 8.1 - A wire loop moves from a region with no magnetic...Ch. 8.1 - At two later instants, t=t1andt=t1+t the loop is...Ch. 8.2 - The resistance of loop 2 is greater than that loop...Ch. 8.2 - Suppose that loop 2 were replaced by a wooden...
Additional Science Textbook Solutions
Find more solutions based on key concepts
24. (Il) You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to...
Physics: Principles with Applications
48. * An impulse of stops your head during a car collision. (a) A crash test dummy’s head stops in 0.020 s, wh...
College Physics
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
Why do passengers in high altitude jet planes feel the sensation of weight but passengers in an orbiting space ...
Conceptual Integrated Science
2. The source of electromagnetic waves is vibrating
electrons.
atoms.
molecules.
energy fields.
Conceptual Physical Science (6th Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
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
- The attached picture shows a rectanguar loop of conducting wire with a current I is placed n external uniform magentic field. The current is moving in clockwise direction. What is the direction of the net force on the loop due to the magetnic field?arrow_forwardConsider a large loop with radius b. Positioned directly above its center is the center of a small loop with radius a. The planes in which they lie are parallel to each other. If a current I flows through the small loop, what will be the flux through the big loop? Hint: You may treat the small loop as a magnetic dipole or invoke mutual inductances if this problem is too difficult.arrow_forwardShow the step pleasearrow_forward
- How long does it take the charge to make a complete trip around the rotating ring? Express your answer in terms of some or all of the variables Q, a, r, dr, n, and the constant π.arrow_forwardA circular loop having a radius of R and having a current of current I was put in a uniform magnetic field with a strength of B and it is also pointing out of the page. An angle of 30° was made by the loop with respect to the positive x axis in such a way that the loop’s right hemisphere is above the xy-plane, whereas the left hemisphere is below. This is illustrated in the figure attached. From the choices, determine the loop’s potential energy and the magnitude of the torque it experiences.arrow_forwardA loop of wire in the shape of a rectangle of width w and length L and a long, straight wire carrying a current I lie on a tabletop as shown in the figure below. i (a) Determine the magnetic flux through the loop due to the current I. (Use any variable stated above along with the following as necessary: μ.) $B= (b) Suppose the current is changing with time according to I = a + bt, where a and b are constants. Determine the magnitude of the emf (in V) that is induced in the loop if b = 18.0 A/s, h = 1.00 cm, w = 15.0 cm, and L = 1.10 m. (c) What is the direction of the induced current in the rectangle? O clockwise O counterclockwise O The magnitude is zero. What If? Suppose a constant current of I = 6.00 A flows in the straight wire and the loop moves from an initial position ho = 1.00 cm toward the bottom of the figure at a constant speed of v = 22.0 cm/s. (d) What is the magnitude of the induced emf (in V) in the loop 1.00 s after it begins to move? (e) What is the direction of the…arrow_forward
- A rectangular loop of dimensions l and w, shown below, moves with a constantvelocity v away from a long straight wire that carries a current I0. The loop has a totalresistance of R. Derive an expression that gives the current in the loop at the instant the nearside is a distance r from the wirearrow_forwardPART A: Two long wires, one of which has a semicircular bend of radius R and center P, are positioned as shown below. If both wires carry a current, how far apart must their parallel sections be so that the total magnetic field at P is zero? Express a in terms of R. Does the current in the straight wire flow up or down? Explain. PART B: The infinite, straight wire shown below carries a current I1. The rectnangular loop, whose long sides are parallel to the wire, carries a current I2. What are the magnitude and direction of the total magnetic force on the rectangular loop due to the magnetic field of the long wire?arrow_forwardA loop of wire in the shape of a rectangle of width w and length L and a long, straight wire carrying a current I lie on a tabletop as shown in the figure below. L (a) Determine the magnetic flux through the loop due to the current I. (Use any variable stated above along with the following as necessary: H.) 2n X* (b) Suppose the current is changing with time according to I = a + bt, where a and b are constants. Determine the magnitude of the emf (in V) that is induced in the loop if b = 20.0 A/s, h = 1.00 cm, w = 20.0 cm, and L = 1.45 m. 3.2e-6 How do you determine the induced emf from your equation for the flux from part (a)? V (c) What is the direction of the induced current in the rectangle? O clockwise O counterclockwise O The magnitude is zero. X* What If? Suppose a constant current of I = 6.00 A flows in the straight wire and the loop moves from an initial position h, = 1.00 cm toward the bottom of the figure at a constant speed of v = 18.0 cm/s. (d) What is the magnitude of the…arrow_forward
- In the figure below, point P is at a perpendicular distance a = 13 cm from one end of a straight wire of length L = 15 cm carrying current I = 6 A. (Note that the wire is not long, or infinite.) What are the magnitude and direction of the magnetic field at P? For direction, you can say into or out of the page.arrow_forwardA toroid is a solenoid bent into the shape of a doughnut. It looks similar to a toy Slinky® with ends joined to make a circle. Consider a toroid consisting of N turns of a single wire with current I flowing through it. (Figure 1) Consider the toroid to be lying in the re plane of a cylindrical coordinate system, with the z axis along the axis of the toroid (pointing out of the screen). Let represent the angular position around the toroid, and let r be the distance from the axis of the toroid. For now, treat the toroid as ideal; that is, ignore the component of the current in the direction. Figure 00 Ampèrean loop (a) 1 of 1 (b) Correct Notice that the direction is antiparallel to the path shown by the Ampèrean loop in the figure. Also, by definition, ✩ × î = Ô. Part C What is B (r), the magnitude of the magnetic field inside the toroid and at a distance r from the axis of the toroid? Express the magnetic field in terms of I, μo (the permeability of free space), N, and r. ► View…arrow_forwardTwo long wires, one of which has a semicircular bend of radius R and center P, are positioned as shown below. If both wires carry a current I, how far apart must their parallel sections be so that the total magnetic field at P is zero? Express a in terms of R. Does the current in the straight wire flow up or down? Explain. The infinite, straight wire shown below carries a current I1. The rectangular loop, whose long sides are parallel to the wire, carries a current I2. What are the magnitude and direction of the total magnetic force on the rectangular loop due to the magnetic field of the long wire?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY