1 Magnetic Forces, Materials, and Devices
Magnetic Forces, Materials, and Devices
Jan 06, 2016
Magnetic Forces, Materials, and Devices. 1. Figure 8.1 Force between two current loops. Figure 8.2 Magnetic focusing of a beam of electrons: (a) helical paths of electrons, (b) end view of paths. Figure 8.3 A velocity filter for charged particles. - PowerPoint PPT Presentation
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
1
Magnetic Forces,Materials, and Devices
Elements of Electromagnetics Fourth Edition Sadiku 2Copyright © 2007 Oxford University Press
Figure 8.1 Force between two current loops.
Elements of Electromagnetics Fourth Edition Sadiku 3Copyright © 2007 Oxford University Press
Figure 8.2 Magnetic focusing of a beam of electrons: (a) helical paths of electrons, (b) end view of paths.
Elements of Electromagnetics Fourth Edition Sadiku 4Copyright © 2007 Oxford University Press
Figure 8.3 A velocity filter for charged particles.
Elements of Electromagnetics Fourth Edition Sadiku 5Copyright © 2007 Oxford University Press
Figure 8.4 For Example 8.4: (a) rectangular loop inside the field produced by an infinitely long wire, (b) forces acting on the loop and wire.
Elements of Electromagnetics Fourth Edition Sadiku 6Copyright © 2007 Oxford University Press
Figure 8.5 (a) Rectangular planar loop in a uniform magnetic field. (b) Cross-sectional view of part (a).
Elements of Electromagnetics Fourth Edition Sadiku 7Copyright © 2007 Oxford University Press
Figure 8.6 Magnetic field at P due to a current loop.
Elements of Electromagnetics Fourth Edition Sadiku 8Copyright © 2007 Oxford University Press
Table 8.2 Comparison between Electric and Magnetic Monopoles and Dipoles
Elements of Electromagnetics Fourth Edition Sadiku 9Copyright © 2007 Oxford University Press
Figure 8.7 The B lines due to magnetic dipoles: (a) a small current loop with m IS, (b) a bar magnet with m = Qmℓ.
Elements of Electromagnetics Fourth Edition Sadiku 10Copyright © 2007 Oxford University Press
Figure 8.8 A bar magnet in an external magnetic field.
Elements of Electromagnetics Fourth Edition Sadiku 11Copyright © 2007 Oxford University Press
Figure 8.9 Triangular loop of Example 8.5.
Elements of Electromagnetics Fourth Edition Sadiku 12Copyright © 2007 Oxford University Press
Figure 8.10 (a) Electron orbiting around the nucleus. (b) Electron spin.
Elements of Electromagnetics Fourth Edition Sadiku 13Copyright © 2007 Oxford University Press
Figure 8.11 Circular current loop equivalent to electronic motion of Figure 8.10.
Elements of Electromagnetics Fourth Edition Sadiku 14Copyright © 2007 Oxford University Press
Figure 8.12 Magnetic dipole moment in a volume v: (a) before B is applied, (b) after B is applied.
Elements of Electromagnetics Fourth Edition Sadiku 15Copyright © 2007 Oxford University Press
Figure 8.13 Classification of magnetic materials.
Elements of Electromagnetics Fourth Edition Sadiku 16Copyright © 2007 Oxford University Press
Figure 8.14 Magnetic screening: (a) iron shield protecting a small compass, (b) compass gives erroneous reading without the shield.
Elements of Electromagnetics Fourth Edition Sadiku 17Copyright © 2007 Oxford University Press
Figure 8.15 Typical magnetization (B–H) curve.
Elements of Electromagnetics Fourth Edition Sadiku 18Copyright © 2007 Oxford University Press
Figure 8.16 Boundary conditions between two magnetic media: (a) for B, (b) for H.
Elements of Electromagnetics Fourth Edition Sadiku 19Copyright © 2007 Oxford University Press
Figure 8.17 For Example 8.8.
Elements of Electromagnetics Fourth Edition Sadiku 20Copyright © 2007 Oxford University Press
Figure 8.18 For Example 8.9.
Elements of Electromagnetics Fourth Edition Sadiku 21Copyright © 2007 Oxford University Press
Figure 8.19 Magnetic field B produced by a circuit.
Elements of Electromagnetics Fourth Edition Sadiku 22Copyright © 2007 Oxford University Press
Figure 8.20 Magnetic interaction between two circuits.
Elements of Electromagnetics Fourth Edition Sadiku 23Copyright © 2007 Oxford University Press
Figure 8.21 A differential volume in a magnetic field.
Elements of Electromagnetics Fourth Edition Sadiku 24Copyright © 2007 Oxford University Press
Table 8.3 A Collection of Formulas for Inductance of Common Elements
Elements of Electromagnetics Fourth Edition Sadiku 25Copyright © 2007 Oxford University Press
Figure 8.22 Cross section of the coaxial cable: (a) for region 10 a, (b) for region 2, a b; for Example 8.11.
Elements of Electromagnetics Fourth Edition Sadiku 26Copyright © 2007 Oxford University Press
Figure 8.23 Two coaxial circular wires; for Example 8.13.
Elements of Electromagnetics Fourth Edition Sadiku 27Copyright © 2007 Oxford University Press
Figure 8.24 Analogy between (a) an electric circuit and (b) a magnetic circuit.
Elements of Electromagnetics Fourth Edition Sadiku 28Copyright © 2007 Oxford University Press
Figure 8.25 An electromagnet.
Elements of Electromagnetics Fourth Edition Sadiku 29Copyright © 2007 Oxford University Press
Figure 8.26 (a) Toroidal core of Example 8.14. (b) Its equivalent electric circuit analog.
Elements of Electromagnetics Fourth Edition Sadiku 30Copyright © 2007 Oxford University Press
Figure 8.27 Magnetic circuit for Example 8.15.
Elements of Electromagnetics Fourth Edition Sadiku 31Copyright © 2007 Oxford University Press
Figure 8.28 Electric circuit analog of the magnetic circuit in Figure 8.27.
Elements of Electromagnetics Fourth Edition Sadiku 32Copyright © 2007 Oxford University Press
Figure 8.29 U-shaped electromagnet; for Example 8.16.
Elements of Electromagnetics Fourth Edition Sadiku 33Copyright © 2007 Oxford University Press
Figure 8.30 A levitated object.
Elements of Electromagnetics Fourth Edition Sadiku 34Copyright © 2007 Oxford University Press
Figure 8.31 Maglev train.
Elements of Electromagnetics Fourth Edition Sadiku 35Copyright © 2007 Oxford University Press
Figure 8.32 For Review Questions 8.3 and 8.4.
Elements of Electromagnetics Fourth Edition Sadiku 36Copyright © 2007 Oxford University Press
Figure 8.33 For Problem 8.5.
Elements of Electromagnetics Fourth Edition Sadiku 37Copyright © 2007 Oxford University Press
Figure 8.34 For Problem 8.6.
Elements of Electromagnetics Fourth Edition Sadiku 38Copyright © 2007 Oxford University Press
Figure 8.35 For Problem 8.9.
Elements of Electromagnetics Fourth Edition Sadiku 39Copyright © 2007 Oxford University Press
Figure 8.36 For Problem 8.10.
Elements of Electromagnetics Fourth Edition Sadiku 40Copyright © 2007 Oxford University Press
Figure 8.37 For Problem 8.11.
Elements of Electromagnetics Fourth Edition Sadiku 41Copyright © 2007 Oxford University Press
Figure 8.38 For Problem 8.15.
Elements of Electromagnetics Fourth Edition Sadiku 42Copyright © 2007 Oxford University Press
Figure 8.39 For Problem 8.32.
Elements of Electromagnetics Fourth Edition Sadiku 43Copyright © 2007 Oxford University Press
Figure 8.40 For Problem 8.44.
Elements of Electromagnetics Fourth Edition Sadiku 44Copyright © 2007 Oxford University Press
Figure 8.41 For Problem 8.45.
Elements of Electromagnetics Fourth Edition Sadiku 45Copyright © 2007 Oxford University Press
Figure 8.42 For Problem 8.48.
Elements of Electromagnetics Fourth Edition Sadiku 46Copyright © 2007 Oxford University Press
Figure 8.43 For Problem 8.49.
Elements of Electromagnetics Fourth Edition Sadiku 47Copyright © 2007 Oxford University Press
Figure 8.44 For Problem 8.50.
Elements of Electromagnetics Fourth Edition Sadiku 48Copyright © 2007 Oxford University Press
Figure 8.45 For Problem 8.51.
Related Documents
