Fundamentals of Electromagnetics with Engineering Applications
1st Edition
ISBN: 9780470105757
Author: Stuart M. Wentworth
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 3, Problem 3.31P
To determine
The magnetic flux that passes along the z -axis for an infinite coaxial cable.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Given a magnetic flux density of 0.128 T that is uniform in the positive z direction. What is the magnetic flux:
a. across the surface abcd?
b. across the surface befc?
c. across the surface aefd?
8. An iron ring has a mean circumferential length of 40 cm and a cross sectional area o 1 cm2. It is wound uniformly with 500 turns of wire. Measurements made with a search coil around the ring show that flux in the ring is 6Wb. If the relative permeability of the core is known to be 65, determine the current flowing in the windings.
A magnetic core with an air gap is shown below. For a relative permeability is 3500, and the space free permeability is 4TTX10-7 H/m. Find
the reluctance of the left leg and the top side of the core. Ignore the gap in your calculations.
10 cm
0.1 cm
gap
20 cm
5 cm
5 cm
40 cm
5 cm
core depth = 10 cm
Select one:
O a. Rieft = 1251 A.t./Wb , Rtop = 1023 A.t/Wb
O b. None
O c. Rieft = 12.51 KA.t./Wb , Reop = 10.23 KA.t/Wb
O d. Rieft = 125.1 A.t./Wb , Rtop = 102.3 A.t/Wb
Chapter 3 Solutions
Fundamentals of Electromagnetics with Engineering Applications
Ch. 3 - Find AB for the following: A=2ax3ay+4az,B=5ay1az...Ch. 3 - Prob. 3.2PCh. 3 - Given the vertices of a triangle...Ch. 3 - A segment of conductor on the z–axis extends...Ch. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - A square conductive loop in the shape 10.0 cm is...Ch. 3 - A conductive loop in the x–y plane is bounded by...Ch. 3 - How close do you have to be to the middle of a...Ch. 3 - For the ring of current described in MATLAB 3.2,...
Ch. 3 - A solenoid has 200 turns, is 10.0 cm long, and has...Ch. 3 - For the solenoid of the previous problem, plot the...Ch. 3 - Prob. 3.13PCh. 3 - Two infinite extent current sheets exist at z=2.0m...Ch. 3 - An infinite extent current sheet with K=6.0ayA/m...Ch. 3 - Given the field H=3y2ax, find the current passing...Ch. 3 - Given a 3.0–mm–radius solid wire centered on...Ch. 3 - Given a 2.0–cm–radius solid wire centered on...Ch. 3 - An infinitesimally thin metallic cylindrical shell...Ch. 3 - A cylindrical pipe with a 1.0–cm wall thickness...Ch. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Consider the toroid in Figure 3.55 that is tightly...Ch. 3 - Find A for the following fields: A=3xy2/zax...Ch. 3 - Find J at (3m,60,4m) for H=(z/sin)a(2/cos)azA/mCh. 3 - Suppose H=y2ax+x2ayA/m .(a) Calculate HdL around...Ch. 3 - Prob. 3.27PCh. 3 - Suppose you have the field H=rcosaA/m. Now...Ch. 3 - Prob. 3.29PCh. 3 - Suppose an infinite extent sheet of current with...Ch. 3 - Prob. 3.31PCh. 3 - A 1.0nC charge with velocity 100.m/s in the y...Ch. 3 - A 1.0nC charge with velocity 100.m/s in the z...Ch. 3 - A 10.nC charged particle has a velocity...Ch. 3 - What electric field is required so that the...Ch. 3 - An electron (with rest mass Me=9.111031kg and...Ch. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Prob. 3.39PCh. 3 - Suppose you have a pair of parallel lines each...Ch. 3 - In Figure 3.57, a 2.0-A line of current is shown...Ch. 3 - Modify MATLAB 3.4 to find the differential force...Ch. 3 - Prob. 3.43PCh. 3 - A square loop of 1.0-A current of side 4.0 cm is...Ch. 3 - A current sheet K=100axA/m exists at z=2.0cm. A...Ch. 3 - Prob. 3.46PCh. 3 - Prob. 3.47PCh. 3 - A solid nickel wire of diameter 2.0 mm evenly...Ch. 3 - Prob. 3.49PCh. 3 - The plane y = O separates two magnetic media....Ch. 3 - Prob. 3.52PCh. 3 - Prob. 3.53PCh. 3 - Prob. 3.54PCh. 3 - Prob. 3.55PCh. 3 - Prob. 3.56PCh. 3 - Prob. 3.57PCh. 3 - Prob. 3.58PCh. 3 - Prob. 3.59PCh. 3 - Prob. 3.60PCh. 3 - Prob. 3.61PCh. 3 - In Figure 3.59, a 2.0-cm-diameter toroidal core...Ch. 3 - Suppose the 2.0-cm-diameter core of the toroid in...Ch. 3 - Prob. 3.64PCh. 3 - Consider a 1.0-mm air gap in Figure 3.49a. 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
- E As shown in the figure below, a uniform magnetic fiekl with magniude of magnetic flux density B is applied to a circukar region that is æntered on point A and has a radius of a- The direction of the magnetic field is perpendicular to this page, going from the back to the front. Acharged partidle with mass m and dharge q(> 0) is traveling in a straight line fiom point Pouside the magnetic field toward A witha sped of v as it enters the region of the magnetic field. After entering the magnetic fiekl, the particle moves in a circular path that is centered on point O and has a radius of r. The partice then exits the magnetic field and travels straight toward point Q. Whik the particle curved through the magnetic field, its direction of motionchanged by 20 (the angular difference between direction P-A and A-Q). OB 20 Q5 What is tan (? From D-@ below chose the comect answer. 18 aqB qB 4) qB aqB amuarrow_forwardFind the magnetic flux density when a point from a finite current length element of current 0.5A and radius 100 nm. 2.0 0.0 1.0 none of the above 0.5arrow_forwardA straight copper conductor 20 cm long moves across a magnetic field of 10,000 gauss at an angle of 60 degree and at a velocity of 120 cm/sec, a. solve for the generated voltage, b. when the velocity decreases by 15% solve for the generated voltage.arrow_forward
- A magnetic core with an airgap is shown in the figure below. The depth of the core is 7 cm, the length of the airgap in the core, g, is 0.04 cm, the relative permeability of the core is 2000. Assume a five percent increase in the effective air-gap area to account for fringing. The reluctance of the air-gap in kAt/Wb is 7cm Scm 10cm 7cm 22cm 8cm 7cm 5cm O a. 86.6 O b. 909.5 Oc. 90,95 O d. 866arrow_forwardCore centerline b) Consider a magnetic circuit using an iron toroid. The mean diameter of the toroid (2R) is 12 cm, with the rotation ring diameter (2r) of 1 cm. Find the current needed to generate a flux density in the iron of "B =0.1T", with a H. coil of N = 400 turns. Consider relative permeability of 6000 for the iron. PLEASE TURN THE PAGE N turm collarrow_forwardConsider thata current , is flowing in the inner conductor pf a coaxial cable and retruns through the outer conductre of the coaxial cable. What will be the magnetic field (H) in ihe outside region of the coxial cable and why?arrow_forward
- A ring of ferromagnetic material has a rectangular section. The inner diameter is 15 cm.The outer diameter is 24 cm. And the thickness is 5 cm. There is a coil of 500 turns wound onthe ring. When the coil has a current of 10 A, the flux in the core is 0.0007 Wb. Theaverage length of the ring is Ln=0.66m Determine:a) The magnetomotive force.b) The intensity of the magnetic field and the flux density.c) Reluctance, permeability and relative permeability.arrow_forwardLet's consider a loop of wire with an unknown shape but in order to analyze it we need to assume a specific shape. A rectangular shape seems to be appropriate and obviously has a length L, a width w and lies in the x-y plane with the magnetic field oriented along the +z direction. Give the expression of: a) The magnetic flux density through the loop b) The emf induced in the loop with N turns at time t c) The instantaneous emf if B = 3e ¬v3 , d) How does the overtime variation of the magnetic field affect the magnetic flux and the current?arrow_forwardFor the following magnetic core with an air gap and dimensions as shown in the figure. The depth of the core is 10 cm: 5 cm 25 cm 5 cm 15 cm Sm 5 cm Sm a) Find the reluctance of the core. The relative permeability 4, 2000. Hint: use depth to find the area. b) If the fringing effect increases the effective area of the air gap by 5% (from the area of the core), find the reluctance of the air gap. c) If the number of turns in the coil are N = 500, find the current i required to produce a magnetic field B, = 0.2 T in the air gap. %3Darrow_forward
- An iron ring has a cross section of 3 cm2 and a mean diameter of 25 cm and relative permeability of 3438. an air-gap of 0.4 mm has been cut a cross the section of the ring, find the reluctance of this core. This core is wound with a coil of 200 turns, find the current passed if the total magnetic flux is 0.5 mwb. Neglecting the magnetic leakage and fringing. 200 turns Air-gaparrow_forwardAn infinitely long straight wire carries 1000 A of current and in the vicinity, there is a circular conducting loop of 100 mm diameter with the center of the loop 1m away from the straight conductor. Both the wire and the loop are coplanar. The magnitude and direction of current in the loop that produces a zero flux density at its center is?arrow_forwardQ4// A ring of a mean diameter 30 cm and cross sectional area of 15 cm2 is made up of semi – circular sections of cast iron and cast steel. If each joint has an air gap of 0.25 mm. Find amper turns required to produce a flux of 7 x 10 weber in the magnetic circuit. The relative permeability of steel and iron are 852 and 165 respectively. - OA- Amper turns required= 1105 OB- Amper turns required= 1995 OC- Amper turns required= 2250 OD- Amper turns required= 3150 OE- None of above ارسال الاجابةarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
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,
The Biot-Savart Law; Author: Jennifer Cash;https://www.youtube.com/watch?v=1BoIH6Quhiw;License: Standard Youtube License