This book is a detailed treatment of volume and surface force-densities and mechanical stresses in electrically and/or magnetically polarized bodies. The classical approach applies equally well to the electric and/or to the magnetic case. The issue of computation of force densities in materials is still a controversial one, but it is very important in many practical applications. These include the design of electric machines and various power apparatus, permanent magnet devices, and piezo-electric actuators and sensors. By combining electrodynamic theory, continuum mechanics and classical thermodynamics, important and reliable formulas for force densities are derived and settled. In particular, the well-known controversy between the Helmholtz and the Kelvin formulas for force densities in linear fluid dielectrics is analyzed in detail in the light of existing experimental results.
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Scipione Bobbio has been professor of Principles of Electronic Engineering since 1979. He is a scientific consultant of the major laboritories in the world in the sector of controlled thermonuclear fusion. He is the author of two physics textbooks, one devoted soley to electromagnetism and one to optics; two texts on exercises in electrotechnics; and about seventy scientific papers on applied electromagnetism, published in major international journals.
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Book Description Academic Press, 1999. Hardcover. Book Condition: New. Bookseller Inventory # P110121082601