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A Further Explanation of Maxwell's Displacement Current

Author:

Abdullahi, Musa Daji

Category:

Research Papers

Sub-Category:

Mechanics / Electrodynamics

Language:

English

Date Published:

March 4, 2020

File:

/Research Papers-Mechanics / Electrodynamics/Download/8142

Downloads:

312

Keywords:

KeyDisplacement Current, Electric Field, Magnetic Field, Magnetic Vector Potential, Vector, Wave Equation.

Abstract:

A magnetic field H or electric current intensity J in a conductor, changing with time t, generates an induction electric field E, as given by Faraday’s law. An oscillating electric field E gives rise to displacement current intensity (dE/dt), where  is the electric permittivity. The addition of (dE/dt) to the conduction current intensity J, by Maxwell, was crucial in deriving the electromagnetic wave equation. The field E accounts for inertia where the accelerating force m(dv/dt) on a particle of charge Q and mass m, moving with velocity v, is equal and opposite to the inertial force expressed as QE.