Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Chapter 12, Problem 8P
If a magnetizing force H of 600 At/m is applied to a magnetic circuit, a flux density B of
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a) A single conductor of length 40 mm is positioned at a 30° angle to a magnetic field of density 300 mT. The conductor experiences a force of 30 µN. What is the value of the current flowing in the conductor?
b) Calculate to find the magnetic flux density if a flux of 40 µWb passes through an area of 2 cm2
Utilize magnetostatic ideas to determine the magnetic field strength of a long, straight wire carrying a current of 1 A at a distance of 5 metres. 8)Examine the boundary value conditions indicated below and formulate the equations in terms of magnetic flux density. Medium 1 AS(a,) Ah2 Ah/2 ar AS(-aN) BN2 Medium 2 AS(a,) Ah2 Ah/2 ar AS(-aN) BN2
An iron ring of mean length 50 cms has an air gap of 1 mm and a winding of 200 turns. If the permeability of iron is 300 when a current of 1 A flows through the coil, find the flux density.
Chapter 12 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 12 - Using Appendix E, fill in the blanks in the...Ch. 12 - Repeat Problem 1 for the following table if...Ch. 12 - For the electromagnet in Fig. 12.34 a. Find the...Ch. 12 - Which section of Fig. 12.35-(a), (b), or (c)-has...Ch. 12 - Find the reluctance of a magnetic circuit if a...Ch. 12 - Prob. 6PCh. 12 - Find the magnetizing force H for Problem 5 in SI...Ch. 12 - If a magnetizing force H of 600 At/m is applied to...Ch. 12 - For the series magnetic circuit in Fig. 12.36,...Ch. 12 - Find the current necessary to establish a flux of...
Ch. 12 - a. Find the number of turns N1 required to...Ch. 12 - a. Find the mmf (NI) required to establish a flux...Ch. 12 - For the series magnetic circuit in Fig.12.40 with...Ch. 12 - a. Find the current I required to establish a flux...Ch. 12 - Prob. 15PCh. 12 - Determine the current I1 required to establsh a...Ch. 12 - a. A flux of 0.210-4Wb will establish sufficient...Ch. 12 - For the series-parallel magnetic circuit in Fig....Ch. 12 - Find the magnetic flux established in the series...Ch. 12 - Prob. 20PCh. 12 - Note how closely the B-H curve of cast steel in...
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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
- Calculate the flux density (B), produced by a magnetizing force (H) of 2000At/m in steel having a relative permeability of 400.arrow_forwardA coil of 1000 turns is uniformly wound on a ring type non-magnetic material. The mean diameter and cross-sectional area of the ring are 20 cm and 4 cm2. If the current flowing is 2 A, find the total flux in μWb. SHOW SOLUTION PLEASE.arrow_forwardApply the concepts of magnetostatics to compute magnetic field intensity of a long, straight wire carrying a correct of 1 A at a distance of 5 meter meter from it. 8)Analyze the boundary value conditions in the illustration given below and frame the equations in terms of magnetic flux density Medium 1 AS(a,) Ah2 Ah/2 ar AS(-aN) BN2 Medium 2arrow_forward
- Determine the magnetic field strength and the mmf required to produce a flux density of 0.25T in an air gap of length 12mm.arrow_forwardGiven a magnetic circuit with a current 2.6A flowing through 205 turns of wire on a core having a reluctance of 125000 At/Wb. Determine the magnetomotive force of the circuit in base units.arrow_forward5) • Explain what happens when a long straight conductor is moved through a uniform magnetic field at constant velocity. Assume that the conductor moves perpendicularly to the field. If the ends of the conductor are connected through an ammeter, what will happen? • A conductor, 0.6 m long, is carrying a current of 75 A and is placed at right angles to a magnetic field of uniform flux density. Calculate the value of the magnetic flux density if the mechanical force on the conductor is 30 N.arrow_forward
- The magmatic flux density within a har of some material of 0.630 Tesla at an H field of 5*10 compute the following for this material a-the magnetic permeability and the magnetic susceptibilityarrow_forwarda. Find the current I required to establish a fluxφ = 2.4 × 10−4 Wb in the magnetic circuit ofFigure. Here area (throughout) =2 × 10−4 m2, lab = lef = 0.05 m, laf = lbe= 0.02 m, lbc = ldc, and the material is sheet steel. b. Compare the mmf drop across the air gap to thatacross the rest of the magnetic circuit. Discuss yourresults, using the value of μ for each material.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
- The magnetic permeability of the material in the x>0 region is 4uH/m and the magnetic flux density is B=2ax-3ay+az.Since the magnetic permeability of the material in the x<0 region is 2uH/m, the material in the x<0 regiona) Find the vector normal component of the magnetic flux density.b) Find the vector tangent component of the magnetic field strength.c) Find the vector magnetic flux density.arrow_forwardFind the magnetic flux density at point P if a stable current I in the figure is directed towards the center of the coordinate system from infinity on the positive x-axis and then towards infinity along the y-axis. Assuming a current of 8A passes through the wire.arrow_forward:The magnetic flux density within a bar of some material is 0.630 tesla at an H field of 5×105A/m . Compute the following for this material: (a) the magnetic permeability, and (b) the magnetic susceptibility. (c) What type(s) of magnetism would you suggest is(are) being displayed by this material ? Why ?arrow_forward
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