TITLE:
Electrostatic and Magnetostatic Forces That Arise from Electrostatic and Magnetostatic Pressures
AUTHORS:
José-Luis Jiménez-Ramírez, Ignacio Campos-Flores, José-Antonio-Eduardo Roa-Neri
KEYWORDS:
Polarizable Electric and Magnetic Media, Electric and Magnetic Pressures, Electromagnetic Force Densities, Macroscopic Maxwell Equations, Balance Equations of Electromagnetic Momentum
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.11 No.3,
March
29,
2019
ABSTRACT: With the insight provided by a balance equation of electromagnetic momentum, we compare the force on a dielectric slab inside a capacitor with the force on a magnetizable rod inside a solenoid. We conclude that these forces are not exactly analogous, as usually thought. We present a device that is a proper analogy of the case of a dielectric slab inside a capacitor. Our analysis shows the significance of the electrostatic and magnetostatic pressures to the understanding of these effects and shows the conceptual differences between both cases.