Basic Electromagnetism and its Applications

Buch | Softcover

152 Seiten

1986
Chapman and Hall (Verlag)
978-0-412-38130-0 (ISBN)

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I have tried in this book to introduce the basic concepts of electromagnetic field theory at a level suitable for students entering degree or higher diploma courses in electronics or subjects allied to it. Examples and applications have been drawn from areas such as instrumentation rather than machinery, as this was felt to be more apt for the majority of such readers. Some students may have been following courses with a strong bias towards prac tical electronics and perhaps not advanced their understanding of the physics of electric and magnetic fields greatly since '0' level or its equivalent. The book there fore does not assume that 'A' level physics has been studied. Students of BTEC courses or 'A' level subjects such as technology might also find the material useful. At the other extreme, students who have achieved well on an 'A' level course will, it is hoped, find stimulating material in the applications discussed and in the marginal notes, which suggest further reading or comment on the deeper implica tions of the work.

1 Introduction.- Structure of the book.- Understanding fields.- 2 Electrical conduction and currents.- Current and charge.- Conduction equations.- Current as an example of flux.- Models of electrical conduction.- Resistive circuit components.- 3 Potential and the electric field.- Potential (voltage) in a circuit.- Electric field.- Conduction and charge mobility.- Potential and field in space.- Acceleration of charged particles in an electric field.- 4 Charge and electric flux.- Capacitance.- Electric flux and permittivity.- Calculations in electrostatics.- 5 Electric fields in materials.- Polarization and dielectrics.- Electrostatic force and energy.- Capacitor design.- Further applications.- 6 Magnetic flux and circuits.- Electromagnetic induction.- Magnetomotive force, flux and reluctance.- Magnetic circuits.- 7 Magnetic vectors.- Vector B and flux.- Directional rules and Lenz’ law.- Magnetic scalar potential and vector H.- Predicting magnetic fields.- 8 Inductance and magnetic materials.- Self and mutual inductance.- Air-cored inductors.- Calculations in magnetism.- Magnetization.- Electromagnetic machinery.- Some applications.- 9 Magnetic energy and force.- Magnetic energy.- Reluctance force.- Permanent magnets.- Force from the motor effect.- 10 Electromagnetism and charged particles.- The Lorentz force.- The Hall effect.- Applications of the Hall effect.- Electron streams.- Acceleration of electrons.- Deflection and focusing of electron streams.- Some applications of electron streams.- 11 The electromagnetic field.- The time needed to establish a current.- Electromagnetic waves.- Electromagnetism and relativity.- Final comments.- The fundamental rules of electromagnetism.- Appendix: A brief note on integration.- Answers to problems.

Erscheint lt. Verlag	31.5.1986
Reihe/Serie	Actual Guides in Electronic Engineering ; 9
Zusatzinfo	VIII, 152 p.
Verlagsort	London
Sprache	englisch
Maße	203 x 254 mm
Themenwelt	Geisteswissenschaften
	Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik
	Sozialwissenschaften
	Technik ► Nachrichtentechnik
ISBN-10	0-412-38130-3 / 0412381303
ISBN-13	978-0-412-38130-0 / 9780412381300
Zustand	Neuware