Electrostatic and Magnetostatic Forces That Arise from Electrostatic and Magnetostatic Pressures  

作　　者：José-Luis Jiménez-Ramírez Ignacio Campos-Flores José-Antonio-Eduardo Roa-Neri 

机构地区：[1]Departamento de Física, Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, México [2]área de Física Teórica y Materia Condensada, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Unidad Azcapotzalco, México D. F., México

出　　处：《Journal of Electromagnetic Analysis and Applications》2019年第3期25-40,共16页电磁分析与应用期刊（英文）

摘　　要：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.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.

关 键 词：Polarizable ELECTRIC and MAGNETIC Media ELECTRIC and MAGNETIC Pressures ELECTROMAGNETIC Force Densities Macroscopic Maxwell EQUATIONS Balance EQUATIONS of ELECTROMAGNETIC Momentum 

分 类 号：R73[医药卫生—肿瘤]