Fundamentals of Applied Electromagnetics (7th Edition)
7th Edition
ISBN: 9780133356816
Author: Fawwaz T. Ulaby, Umberto Ravaioli
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5, Problem 31P
Iron contains 8.5 × 1028 atoms/m3. At saturation, the alignment of the electrons’ spin magnetic moments in iron can contribute 1.5 T to the total magnetic flux density B. If the spin magnetic moment of a single electron is 9.27 × 10–24 (A·m2), how many electrons per atom contribute to the saturated field?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Q) A charged particle of mass 2kg and a charge of 2C travels in a region of uniform magnetic field of B = 5a, wh/m? with a velocity of 3ay m/s. Calculate the force on the particle due to the field?
Determine the magnetic field strength and the mmf required to produce a flux density of 0.25T in an air gap of length 12mm.
A electric power line carries a current of 1000 A in a location where the earth's magnetic field is 5.0 × 10-5 T. The line makes an angle of 45° with respect to the field. Determine the magnitude of the magnetic force on a 100 m. length of line.
Chapter 5 Solutions
Fundamentals of Applied Electromagnetics (7th Edition)
Ch. 5.1 - What are the major differences between the...Ch. 5.1 - Prob. 2CQCh. 5.1 - How is the direction of the magnetic moment of a...Ch. 5.1 - If one of two wires of equal length is formed into...Ch. 5.1 - An electron moving in the positive x direction...Ch. 5.1 - A proton moving with a speed of 2 106 m/s through...Ch. 5.1 - A charged particle with velocity u is moving in a...Ch. 5.1 - A horizontal wire with a mass per unit length of...Ch. 5.1 - A square coil of 100 turns and 0.5 m long sides is...Ch. 5.2 - Two infinitely long parallel wires carry currents...
Ch. 5.2 - Devise a right-hand rule for the direction of the...Ch. 5.2 - What is a magnetic dipole? Describe its magnetic...Ch. 5.2 - Prob. 6ECh. 5.2 - A wire carrying a current of 4 A is formed into a...Ch. 5.2 - Prob. 8ECh. 5.3 - What are the fundamental differences between...Ch. 5.3 - Prob. 9CQCh. 5.3 - Compare the utility of applying the BiotSavart law...Ch. 5.3 - Prob. 11CQCh. 5.3 - A current I flows in the inner conductor of a long...Ch. 5.3 - The metal niobium becomes a superconductor with...Ch. 5.5 - What are the three types of magnetic materials and...Ch. 5.5 - What causes magnetic hysteresis in ferromagnetic...Ch. 5.5 - Prob. 14CQCh. 5.5 - The magnetic vector M is the vector sum of the...Ch. 5.6 - With reference to Fig. 5-24, determine the single...Ch. 5.7 - Prob. 15CQCh. 5.7 - What is the difference between self-inductance and...Ch. 5.7 - Prob. 17CQCh. 5.7 - Use Eq. (5.89) to obtain an expression for B at a...Ch. 5 - An electron with a speed of 8 106 m/s is...Ch. 5 - When a particle with charge q and mass m is...Ch. 5 - The circuit shown in Fig. P5.3 uses two identical...Ch. 5 - The rectangular loop shown in Fig. P5.4 consists...Ch. 5 - In a cylindrical coordinate system, a 2 m long...Ch. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8PCh. 5 - The loop shown in Fig. P5.9 consists of radial...Ch. 5 - An infinitely long, thin conducting sheet defined...Ch. 5 - An infinitely long wire carrying a 25 A current in...Ch. 5 - Prob. 12PCh. 5 - Prob. 13PCh. 5 - Prob. 14PCh. 5 - A circular loop of radius a carrying current I1 is...Ch. 5 - Prob. 16PCh. 5 - Prob. 17PCh. 5 - Prob. 18PCh. 5 - Three long, parallel wires are arranged as shown...Ch. 5 - A square loop placed as shown in Fig. P5.20 has 2...Ch. 5 - Prob. 21PCh. 5 - Prob. 22PCh. 5 - Repeat Problem 5.22 for a current density J=zJ0er.Ch. 5 - In a certain conducting region, the magnetic field...Ch. 5 - Prob. 25PCh. 5 - Prob. 26PCh. 5 - Prob. 27PCh. 5 - A uniform current density given by J=zj0 (A/m2)...Ch. 5 - A thin current element extending between z = L/2...Ch. 5 - In the model of the hydrogen atom proposed by Bohr...Ch. 5 - Iron contains 8.5 1028 atoms/m3. At saturation,...Ch. 5 - The xy plane separates two magnetic media with...Ch. 5 - Given that a current sheet with surface current...Ch. 5 - In Fig. P5.34, the plane defined by x y = 1...Ch. 5 - The plane boundary defined by z = 0 separates air...Ch. 5 - Prob. 36PCh. 5 - Prob. 37PCh. 5 - A solenoid with a length of 20 cm and a radius of...Ch. 5 - Prob. 39PCh. 5 - The rectangular loop shown in Fig. P5.40 is...Ch. 5 - Determine the mutual inductance between the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A wire with length 1m moved with velocity 0.5 m/s made angle 45 degree with x-axis, it is moved in a uniform magnetic field 0.2T along y-axis, what is the motional emf in this wire?arrow_forwardin a non-magnetic medium, with η = 30π Ω, we have an E = 5cos (ωt + βy) ax [V / m].The relative permittivity is:arrow_forwardFind the rate of change with time of the magnetic field at a location at which the induced electric field is given by: Eo( (y/yo)^2î + (x/xo)^2ĵ + (z/zo)^2k̂)arrow_forward
- a conductor of 60 cm long and carries a current of 120A when placed perpendicular to a magnetic field of 58,000 lines/sq. inch. Calculate the force exerted by conductorarrow_forwardin a space with properties of (relative conductivity) sigma = 0.00964 S/m, (magnetic relative permeability)ur = 100 and (relative permittivity)er = 1 and maximum magnetic field of 1*10^-3 A/m travels in the direction of "x" positive in 100 MHz with its field vector at "z" direction. Find the instantaneous electric field associated with that magnetic field.arrow_forwardA current I circulates in the direction shown in the figure in a closed ring in the form of a right triangle with side lengths a. If this ring is placed at a distance 2a from a very long wire parallel to its long side and carrying a current of 2I, as shown in the figure, what would be the net magnetic force acting on the ring?arrow_forward
- A current I0 circulates in the direction shown in the figure in a closed triangular ring with perpendicular side lengths a. If this ring is placed at a distance of 2a from a very long wire parallel to its long side and carrying a current of 2I0 as shown in the figure, what would be the net magnetic force acting on the ring?arrow_forwardFind the force on a conductor 90 cm long, carrying a current of 2 A and is situated perpendicular to a magnetic field of flux density 0.8 T.arrow_forwardIf the magnetic potential A=15e-ρ sin(∅)az Determinate: a) The magnetic flux density at the point (3, π/4, -10) b) The magnetic flux that crosses the surface ρ = 5; 0 ≤ Φ ≤ π/2 ; 0 ≤ z ≤ 10arrow_forward
- A long, straight wire containing a semi-circular region of radius 0.95 m is placed in a uniform magnetic field of magnitude 2.20 T as shown in the figure. Calculate the net magnetic force acting on the wire when it carries a current of 3.40A.arrow_forwardThe surface area of the area covered by the conductive wire, which consists of a single loop in the form of a square with a side length of 22 cm, is parallel to the magnetic field. If a current of 6.3 A is flowing through this wire and the torque is 0.325 N.m, what is the strength of the magnetic field, in Tesla?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY