Ampre's Longitudinal Forces Revisited

Abstract

Andre-Marie Ampre and Hermann Grassmann each proved the existence of transversal forces in electrodynamics. Nevertheless, even if they coincided on assuming the presence of forces perpendicular to the direction of current flow, only Ampre predicted also a longitudinal component of force. This fundamental disagreement has resulted in a long-lived discussion among many. The purpose of this thesis is to identify the experiments that account for or against the existence of the longitudinal forces in conductors. In order to achieve this, the effects of current on wires subjected to various strain conditions and material characteristics are explored by using COMSOL Multiphysics software. Also, an experimental set-up to get results using the NPS HCTF (High Current Test Fixture) is proposed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2018
Accession Number
AD1069558

Entities

People

  • Alejandro D. Alfaro

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cameras
  • Differential Equations
  • Electric Current
  • Electric Fields
  • Electricity
  • Electromagnetic Fields
  • Geometry
  • Heat Transfer
  • Magnetic Fields
  • Materials
  • Mechanics
  • Numerical Analysis
  • Pinch Effect
  • Standing Waves
  • Stress Waves
  • Test Fixtures
  • Voltage

Readers

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  • International Relations and Conflict Resolution
  • Plasma Physics / Magnetohydrodynamics