Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
4th Edition
ISBN: 9780133942651
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 29, Problem 10EAP
A 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
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 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?
The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.286 N/m.
(a)
What is the current (in A) in the wires, given they are separated by 2.10 cm?
Two long, straight wires cross each other at right angles, andeach carries the same current as in Figure CQ19.18. Whichof the following statements are true regarding the totalmagnetic field at the various points due to the two wires?(There may be more than one correct statement.) (a) Thefield is strongest at points B and D. (b) The field is strongestat points A and C. (c) The field is out of the page at point Band into the page at point D. (d) The field is out of the pageat point C and out of the page at point D. (e) The field hasthe same magnitude at all four points.
Chapter 29 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Ch. 29 - The lightweight glass sphere in FIGURE Q29.1 hangs...Ch. 29 - The metal sphere in FIGURE Q29.2 hangs by a...Ch. 29 - Prob. 3CQCh. 29 - Prob. 4CQCh. 29 - What is the current direction in the wire of...Ch. 29 - What is the initial direction of deflection for...Ch. 29 - What is the initial direction of deflection for...Ch. 29 - Determine the magnetic field direction that causes...Ch. 29 - Determine the magnetic field direction that causes...Ch. 29 - Prob. 10CQ
Ch. 29 - The south pole of a bar magnet is brought toward...Ch. 29 - Prob. 12CQCh. 29 - Prob. 1EAPCh. 29 - Prob. 2EAPCh. 29 - 3. A proton moves along the x-axis with rn/s. As...Ch. 29 - An electron moves along the z-axis with vz=2.0107...Ch. 29 - What is the magnetic field at the position of the...Ch. 29 - What is the magnetic field at the position of the...Ch. 29 - Prob. 7EAPCh. 29 - Prob. 8EAPCh. 29 - Prob. 9EAPCh. 29 - A biophysics experiment uses a very sensitive...Ch. 29 - The magnetic field at the center of a 1.0...Ch. 29 - 12. What are the magnetic fields at points a to c...Ch. 29 - Prob. 13EAPCh. 29 - What are the magnetic field strength and direction...Ch. 29 - Prob. 15EAPCh. 29 - 16. The on-axis magnetic field strength cm from...Ch. 29 - A A current circulates around a -mm-diameter...Ch. 29 - 18. A small, square loop carries a A current. The...Ch. 29 - Prob. 19EAPCh. 29 - 20. What is the line integral of integral points...Ch. 29 - 21. What is the line integral of between points i...Ch. 29 - The value of the line integral of around the...Ch. 29 - 23. The value of the line integral of around the...Ch. 29 - 24. What is the line integral of between points i...Ch. 29 - Prob. 25EAPCh. 29 - 26. A proton moves in the magnetic field with a...Ch. 29 - Prob. 27EAPCh. 29 - 28. Radio astronomers detect electromagnetic...Ch. 29 - Prob. 29EAPCh. 29 - Prob. 30EAPCh. 29 - The microwaves in a microwave oven are produced in...Ch. 29 - The Hall voltage across a conductor in a 55mT...Ch. 29 - 33. What magnetic field strength and direction...Ch. 29 - 34. The two -cm-long parallel wires in FIGURE...Ch. 29 - The right edge of the circuit in FIGURE EX29.35...Ch. 29 - Prob. 36EAPCh. 29 - Prob. 37EAPCh. 29 - 38. A square current loop cm on each side carries...Ch. 29 - Prob. 39EAPCh. 29 - 40. a. What is the magnitude of the torque on the...Ch. 29 - A long wire carrying a 5.0A current perpendicular...Ch. 29 - Prob. 42EAPCh. 29 - What are the strength and direction of the...Ch. 29 - At what distance on the axis of a current loop is...Ch. 29 - 45. Find an expression for the magnetic field...Ch. 29 - Prob. 46EAPCh. 29 - Prob. 47EAPCh. 29 - 48. A -m-long, -mm-diameter aluminum wire has a...Ch. 29 - Prob. 49EAPCh. 29 - Prob. 50EAPCh. 29 - Prob. 51EAPCh. 29 - Weak magnetic fields can be measured at the...Ch. 29 - The heart produces a weak magnetic field that can...Ch. 29 - Prob. 54EAPCh. 29 - 55. The toroid of FIGURE P29.55 is a coil of wire...Ch. 29 - 56. The coaxial cable shown in FIGURE P29.56...Ch. 29 - 57. A long, hollow wire has inner radius and...Ch. 29 - 58. A proton moving in a uniform magnetic field...Ch. 29 - 59. An electron travels with speed m/s between...Ch. 29 - Prob. 60EAPCh. 29 - An antiproton (same properties as a proton except...Ch. 29 - a. A 65 -cm-diameter cyclotron uses a 500 V...Ch. 29 - An antiproton is identical to a proton except it...Ch. 29 - Prob. 64EAPCh. 29 - Prob. 65EAPCh. 29 - Particle accelerators, such as the Large Hadron...Ch. 29 - 67. A particle of charge q and mass m moves in the...Ch. 29 - 68. A Hall-effect probe to measure magnetic field...Ch. 29 - Prob. 69EAPCh. 29 - Prob. 70EAPCh. 29 - The 10-turn loop of wire shown in FIGURE P29.71...Ch. 29 - The two springs in FIGURE P29.72 each have a...Ch. 29 - Prob. 73EAPCh. 29 - Prob. 74EAPCh. 29 - A conducting bar of length I and mass m rests at...Ch. 29 - Prob. 76EAPCh. 29 - A wire along the x-axis carries current I in the...Ch. 29 - Prob. 78EAPCh. 29 - Prob. 79EAPCh. 29 - a. Derive an expression for the magnetic field...Ch. 29 - Prob. 81EAPCh. 29 - A long, straight conducting wire of radius R has a...Ch. 29 - Prob. 83EAP
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
- A portion of a long, cylindrical coaxial cable is shown in the figure below. An electrical current I = 3.0 amps flows down the center conductor, and this same current is returned in the outer conductor. Assume the current is distributed uniformly over the cross sections of the two parts of the cable. The values of the radii in the figure are r1 = 1.5 mm, r2 = 4.0 mm, and r3 = 7.0 mm. Using Ampere’s Law, find the magnitude of the magnetic field at the following distances from the center of the inner wire: a. 1.0 mm. b. 3.0 mm. c. 5.5 mm. d. 9.0 mm.arrow_forwardA domain in ferromagnetic iron is in the form of a cube of side length 1µm. Estimate the number of iron atoms in the domain and the maximum possible dipole moment and magnetisation of the domain. The molecular mass of iron is 55 g/mole and its density is 7.9 g/cm3 . Assume that each iron atom has a dipole moment of 9.27×10-24 A m2arrow_forwardA device is designed to read current through a wire by measuring the magnetic field about the wire. If the device reads a magnetic field of 56 x 10-6 T at a distance of 1.5 mm from the wire, how much current is passing through the wire?arrow_forward
- A coaxial cable consists of a solid center conducting wire and an outer coaxial cylindrical conductor. The space between the conductors and the outer insulation are made of a good insulating material e.g. neoprene. The figure below shows a cross section of such a cable. The current in the center wire is 2.47 A out of the page and the current in the outer conductor is 2.98 A into the page. If the distance a is 2.00 mm, determine the following. (a) the magnitude and direction of the magnetic field at the point P1. (b) the magnitude and direction of the magnetic field at the point P2arrow_forwardWhen a cable carries a current of 1.20 A, the drag speed is 1.20 x 10 ^– 4 m/s. What is the drag speed when this same cable carries a current of 6.00 A?arrow_forwardAn infinitely long conductive wire of radius a is inside an infinitely long and very thin sheath of radius b. Constant I current goes from the conductor wire and returns from the cylindrical sheath. The current density is assumed to be uniform at the wire and sheath. Write the expressions of the magnetic field that are valid inside the wire, between the wire and the sheath and outside the sheath.arrow_forward
- In an old fashioned television tube, the beam current is .055 A. How many Coulombs strike the screen in 14.6 seconds? A 14.6 C B 0.055 C C 265 C D 0.80 Carrow_forwardThe plane of a square loop of wire with edge length a=0.200m is oriented Vertically and along an east west axis. The Earth’s magnitude field at this Points is of magnitude B=35.0 µT and is directed north ward at 35.0° below The horizontal.The total resistance of the loop and the wires connecting it To a sensitive ammeter is 0.500Ω. If the loop is suddenly collapsed by horizontal Forces are shown in figure p30.37, what total charge enters one terminal of the Ammeter?arrow_forwardThe figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I1 = 1.12 A out of the page and the current in the outer conductor is I2 = 3.04 A into the page. Assuming the distance d = 1.00 mm, answer the following. PS:Please make sure your answer is in µTarrow_forward
- Given the following information: D. With the jumper cables attached, how much current passes through the dead battery? E. With the jumper cables attached, in which direction current passes through the dead battery? (Downward, into the page, out of the page, or outward)arrow_forwardThe figure shows a cross section of three parallel wires each carrying a current of 24 A. The currents in wires B and C are out of the paper, while that in wire A is into the paper. If the distance R = 25.0 mm, what is the magnitude of the force on a 4.0-m length of wire A?arrow_forwardA strip of copper 150 mm thick and 4.5 mm wide is placed in a uniform magnetic field of magnitude 0.65 T, with perpendicular to the strip. A current i = 23 A is then sent through the strip such that a Hall potential difference V appears across the width of the strip. Calculate V. (The number of charge carriers per unit volume for copper is 8.47* 10^28 electrons/m3.)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
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY