Campos-Flores, I., Jiménez-Ramírez, J.-L. and Roa-Neri, J.-A.-E. (2018) How Does Arise the Force on a Dielectric Slab in a Parallel Plate Capacitor? Journal of Electromagnetic Analysis and Applications, 10, 131-142.
https://doi.org/10.4236/jemaa.2018.107010

has been cited by the following article:

• TITLE: A New Perspective of the Force on a Magnetizable Rod inside a Solenoid

  AUTHORS: José-Luis Jiménez-Ramírez, Ignacio Campos-Flores, José-Antonio-Eduardo Roa-Neri

  KEYWORDS: Force on a Rod in a Solenoid, Magnetostatic Force, Maxwell Momentum Balance Equation

  JOURNAL NAME: Journal of Electromagnetic Analysis and Applications, Vol.10 No.10, October 16, 2018

  ABSTRACT: We analyze the familiar effect of the pulling of a magnetizable rod by a magnetic field inside a solenoid. We find that the analogy with the pulling of a dielectric slab by a charged capacitor is not as direct as usually thought. Indeed, there are two possibilities to pursue the analogy, according to the correspondence used,either E → B and D → H, or E→ H and D→ B. One of these results in an incorrect sign in the force, while the other gives the correct result. We avoid this ambiguity in the usual energy method applying a momentum balance equation derived from Maxwell’s equations. This method permits the calculation of the force with a volume integration of a force density, or with a surface integration of a stress tensor. An interpretation of our results establishes that the force acts at the interface and has its origin in Maxwell′s magnetic stresses at the medium-vacuum interface. This approach provides new insights and a new perspective of the origin of this force.