University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 29, Problem Q29.11DQ
Example 29.6 discusses the external force that must he applied to the slidewire to move it at constant speed. If there were a break in the left-hand end of the U-shaped conductor, how much force would be needed to move the slidewire at constant speed? As in the example, you can ignore friction.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
3. Coaxial cables are often used to connect electrical devices, for instance in receiving
signals in TV cable systems. Figure below shows a long coaxial cable as consisting of
two thin concentric cylindrical conducting shells of radii a and b and length 1. The
conducting shells (regions: r < a and a < r < b are hollow) carry the same current I
in opposite directions. Imagine that the inner conductor carries current to a device and
that the outer one acts as a return path carrying the current back to the source. The
magnetic field is perpendicular to the blue rectangle of length / and width b-a; the cross
section of interest is shown.
b
dr
B
Calculate the self-inductance L of this cable.
Calculate the total energy stored in the magnetic field of the cable.
Physics students, wanted to investigate the forces of attraction (F) between two parallel conductors carrying currents li and l2
(also known as Ampere's Law)
The students noticed that as the length of the parallel
conductors (/) was increased the force of attraction between
the conductors (F) also increased. The data collected is in the
|L= SA
conductor 1
average separation
(d = 0.50m)
table:
conductor 2
Length, / (m)
Force, F (x 10-5 N)
12= 5A
1.00
9.00
1.20
10.8
1.40
12,5
1.60
14.2
1.80
16.2
(iii) On the grid plot the force and length values from
the table.
(iv) Draw the line of best fit
(v) Find the slope of the line of best fit.
(c) Use the slope calculated and the Ampere's Law
equation to determine the experimental value of
the magnetic force constant, k.
Two parallel copper conductors are each 0.700 m long. They carry currents of 10.0 A in opposite directions. a) What separation between their centers must have conductors if they are to repel each other with a force of 1.00 N? b) Is this situation physically possible? Explain.
Chapter 29 Solutions
University Physics (14th Edition)
Ch. 29 - A sheet of copper is placed between the poles of...Ch. 29 - Prob. Q29.2DQCh. 29 - Prob. Q29.3DQCh. 29 - Prob. Q29.4DQCh. 29 - A long, straight conductor passes through the...Ch. 29 - A student asserted that if a permanent magnet is...Ch. 29 - An airplane is in level flight over Antarctica,...Ch. 29 - Consider the situation in Exercise 29.21. In part...Ch. 29 - Prob. Q29.9DQCh. 29 - Prob. Q29.10DQ
Ch. 29 - Example 29.6 discusses the external force that...Ch. 29 - In the situation shown in Fig. 29.18, would it be...Ch. 29 - Prob. Q29.13DQCh. 29 - Small one-cylinder gasoline engines sometimes use...Ch. 29 - Does Lenzs law say that the induced current in a...Ch. 29 - Does Faradays law say that a large magnetic flux...Ch. 29 - Can one have a displacement current as well as a...Ch. 29 - Prob. Q29.18DQCh. 29 - Match the mathematical statements of Maxwells...Ch. 29 - If magnetic monopoles existed, the right-hand side...Ch. 29 - Prob. Q29.21DQCh. 29 - A single loop of wire with an area of 0.0900 m2 is...Ch. 29 - In a physics laboratory experiment, a coil with...Ch. 29 - Search Coils and Credit Cards. One practical way...Ch. 29 - A closely wound search coil (see Exercise 29.3)...Ch. 29 - A circular loop of wire with a radius of 12.0 cm...Ch. 29 - CALC A coil 4.00 cm in radius, containing 500...Ch. 29 - Prob. 29.7ECh. 29 - CALC A flat, circular, steel loop of radius 75 cm...Ch. 29 - Shrinking Loop. A circular loop of flexible iron...Ch. 29 - A closely wound rectangular coil of 80 turns has...Ch. 29 - CALC In a region of space, a magnetic field points...Ch. 29 - In many magnetic resonance imaging (MRI) systems,...Ch. 29 - The armature of a small generator consists of a...Ch. 29 - A flat, rectangular coil of dimensions l and w is...Ch. 29 - A circular loop of wire is in a region of...Ch. 29 - The current I in a long, straight wire is constant...Ch. 29 - Two closed loops A and C are close to a long wire...Ch. 29 - The current in Fig. E29.18 obeys the equation I(t)...Ch. 29 - Prob. 29.19ECh. 29 - A cardboard tube is wrapped with two windings of...Ch. 29 - A small, circular ring is inside a larger loop...Ch. 29 - A circular loop of wire with radius r = 0.0480 m...Ch. 29 - CALC A circular loop of wire with radius r =...Ch. 29 - A rectangular loop of wire with dimensions 1.50 cm...Ch. 29 - In Fig. E29.25 a conducting rod of length L = 30.0...Ch. 29 - A rectangle measuring 30.0 cm by 40.0 cm is...Ch. 29 - Are Motional emfs a Practical Source of...Ch. 29 - Motional emfs in Transportation. Airplanes and...Ch. 29 - Prob. 29.29ECh. 29 - Prob. 29.30ECh. 29 - A 0.360-m-long metal bar is pulled to the left by...Ch. 29 - Prob. 29.32ECh. 29 - A 0.250-m-long bar moves on parallel rails that...Ch. 29 - Prob. 29.34ECh. 29 - Prob. 29.35ECh. 29 - A metal ring 4.50 cm in diameter is placed between...Ch. 29 - Prob. 29.37ECh. 29 - Prob. 29.38ECh. 29 - A long, thin solenoid has 400 turns per meter and...Ch. 29 - Prob. 29.40ECh. 29 - A long, straight solenoid with a cross-sectional...Ch. 29 - Prob. 29.42ECh. 29 - Prob. 29.43ECh. 29 - CALC In Fig. 29.23 the capacitor plates have area...Ch. 29 - Prob. 29.45ECh. 29 - A very long, rectangular loop of wire can slide...Ch. 29 - CP CALC In the circuit shown in Fig. P29.47, the...Ch. 29 - Prob. 29.48PCh. 29 - CALC A very long, straight solenoid with a...Ch. 29 - Prob. 29.50PCh. 29 - In Fig. P29.51 the loop is being pulled lo the...Ch. 29 - Make a Generator? You are shipwrecked on a...Ch. 29 - A flexible circular loop 6.50 cm in diameter lies...Ch. 29 - CALC A conducting rod with length L = 0.200 m,...Ch. 29 - Prob. 29.55PCh. 29 - CP CALC Terminal Speed. A bar of length L = 0.36 m...Ch. 29 - CALC The long, straight wire shown in Fig. P29.57a...Ch. 29 - CALC A circular conducting ring with radius r0 =...Ch. 29 - CALC A slender rod, 0.240 m long, rotates with an...Ch. 29 - A 25.0-cm-long metal rod lies in the .xy-plane and...Ch. 29 - CP CALC A rectangular loop with width L and a...Ch. 29 - CALC An airplane propeller of total length L...Ch. 29 - The magnetic field B, at all points within a...Ch. 29 - CP CALC A capacitor has two parallel plates with...Ch. 29 - Prob. 29.65PCh. 29 - Prob. 29.66PCh. 29 - DATA You are conducting an experiment in which a...Ch. 29 - DATA You measure the magnitude of the external...Ch. 29 - A metal bar with length L, mass m, and resistance...Ch. 29 - CP CALC A square, conducting, wire loop of side L,...Ch. 29 - BIO STIMULATING THE BRAIN. Communication in the...Ch. 29 - BIO STIMULATING THE BRAIN. Communication in the...Ch. 29 - It may be desirable to increase the maximum...Ch. 29 - Which graph in Fig. P29.74 best represents the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
42. || An atmospheric drag force with magnitude FD= DV,° where v is speed, acts on a. falling 300 mg rai1drop t...
College Physics (10th Edition)
A student has briefly connected a wire across the terminals of a battery until the wire feels warm. The student...
Tutorials in Introductory Physics
The speed at which the classical momentum will give an error of 1.00% when compared with the relativistic momen...
Physics (5th Edition)
Suppose you have a coffee with a circular cross-section and vertical sides (uniform radius). What is its inside...
University Physics Volume 1
A firecracker, initially at rest, explodes into two fragments. The first, of mass 14 g, moves in the +x-directi...
Essential University Physics: Volume 1 (3rd Edition)
Rework Example 7.1, now taking the zero of potential energy at street level. EXAMPLE 7.1 Gravitational Potentia...
Essential University Physics (3rd Edition)
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
- Review. The use of superconductors has been proposed for power transmission lines. A single coaxial cable (Fig. P23.73) could carry a power of 1.00 103 MW (the output of a large power plant) at 200 kV, DC, over a distance of 1.00 103 km without loss. An inner wire of radius a = 2.00 cm, made from the superconductor Nb3Sn, carries the current I in one direction. A surrounding superconducting cylinder of radius b = 5.00 cm would carry the return current I. In such a system, what is the magnetic field (a) at the surface of the inner conductor and (b) at the inner surface of the outer conductor? (c) How much energy would be stored in the magnetic field in the space between the conductors in a 1.00 103 km superconducting line? (d) What is the pressure exerted on the outer conductor due to the current in the inner conductor? Figure. P23.73arrow_forwardA conducting rod slides on two parallel conducting bars as shown below. The bars are connected through a 10 ohm resistor which has a voltmeter attached across it. The bars are separated by .15m in the y direction. A force F is applied to therod to keep the rodmoving in the x direction at constant speed of v=6m/s. A uniform B-field of B=3mT is perpendicular to the x-y plane and points into the page as shown. R= 3mT とミ/Sm R= 10L IN a) Determine the magnetic flux D(x) as a function of x. b) Calculate d®/dt in Wb/s c) Determine the magnitude of EMF measured by the voltmeter. d) Calculate the current through the resistor and its direction (CW or CCW). e) Determine the magnitude of the force required to pull rod. f) Determine the energy density stored in the B-field.arrow_forwardthe external force that must be applied to the slidewire to move it at constant speed. If there were a break in the left-hand end of the U-shaped conductor, how much force would be needed to move the slidewire at constant speed? As in the example, you can ignore friction.arrow_forward
- 9. A conducting bar moves with velocity v near a long wire carrying a constant current / as shown in the figure. The distance of each end of the bar to the wire is given by a and b, respectively. Find the potential difference between the two ends of the bar. b aarrow_forwardQ4: Show detailed work and pay attention to the units. There are two different ways to calculate the potential difference across the bar, using the motional EMF expression or Faraday's Law. Show that both methods give the same answer. Use the right hand rule to figure out which end of the bar (A or B) will be at a higher potential due to the motion of the conductor in the field.arrow_forwardA biophysics experiment uses a very sensitive magnetic field probe to determine the current associated with a nerve impulse traveling along an axon. If the peak field strength 1.0 mm from an axon is 8.0 pT, what is the peak current carried by the axon?arrow_forward
- A straight rod moves along parallel con- ducting rails, as shown. The rails are con- nected at the left side through a resistor so that the rod and rails form a closed rectangu- lar loop. A uniform field perpendicular to the movement of the rod exists throughout the region. Assume the rod remains in contact with the rails as it moves. The rod experiences no friction or air drag. The rails and rod have negligible resistance. 3.7 T 3.7 T At what speed should the rod be moving to produce the downward current in the resistor? Answer in units of m/s. 0.39 A – ® 7.6 g 1.6 marrow_forwardA 4 m long conductor carrying a current of 10 A in the moon direction lies on the y axis between y = ± 2 m. If area B = 0.05ax T, find the work done by moving the conductor at constant speed x = z = 2 m parallel to itself. A. 2 JB. NoneC. 0 JD. 6 JE. 4 Jarrow_forwardAn electron is travelling at 100.0 km/s parallel to a long straight horizontal conductor a distance of 3.00 cm from the conductor. A current of 12.0 A runs through the wire as the electron travels parallel to it, in the same direction as the electron’s velocity. Find the strength of the external electric field that will prevent the electron from deviating from its original path. Express your answer in V/marrow_forward
- A 325 N weight cement bag hangs in balance of three wires, as shown in the figure. Two of the wires form angles of 1 x 60.0 degrees and 2 x 40.0 degrees with the horizontal. If you assume that the system is in balance, find the T1, T2, and T3 voltages on the wires.arrow_forwardPhysics students, wanted to investigate the forces of attractioh (F) between two parallel conductors carrying currents l1 and l2 (also known as Ampere's Law) The students noticed that as the length of the parallel conductors (/) was increased the force of attraction between the conductors (F) also increased. The data collected is in the |L= 5A conductor 1 average separation (d 0.50m) table: conductor 2 Length, I (m) Force, F (x 106 N) 12 = 5A 1.00 9.00 1.20 10.8 1.40 12,5 1.60 14.2 1.80 16.2 (iii) On the grid plot the force and length values from the table. (iv) Draw the line of best fit (v) Find the slope of the line of best fit. (c) Use the slope calculated and the Ampere's Law rmine the experimental value of equation to de the magnetic force constant, k.arrow_forwarda)Two 2.0 m long parallel wires, P and Q are separated by a distance of 20 mm, carrying currents of 5.5 A and 2.2 A respectively in opposite directions. iii. Determine the magnitude and direction of the force exerted on the wire P. iv. Explain how to determine direction of force on wire P. b)An alternating voltage is given by ? = 340 sin 314?, where V is measured in volts and t in seconds. This voltage is supplied across a pure capacitor of 200 ??. i. Determine the rms voltage.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY