Abstract
UDC 621.3.01:621.313
https://doi.org/10.52577/eom.2023.59.4.16
An electrophysical mechanism explaining the origin of an uneven distribution of the field strength of the intrinsic alternating electromagnetic field (EMF) over the thickness of the bulk homogeneous nonmagnetic metal conductor with a rectangular cross-section with an alternating current i0(t) of different peak-temporal parameters is suggested. This mechanism, justifying the manifestation of the surface effect in the specified conductor, is based on the Faraday–Maxwell law of electromagnetic induction. It is mathematically shown that inductive alternating conduction currents and their alternating EMF arising in the conductor material due to the action of an alternating conduction current i0(t) and, accordingly, an intrinsic alternating magnetic flux Ф0(t) at dФ0(t)/dt>0 weaken the intrinsic alternating EMF strength distributed inside the conductor, and at dФ0(t)/dt<0 they maintain the EMF strength diminishing with time and the material depth.
Keywords: metal conductor, alternating current, alternating electromagnetic field, law of electromagnetic induction, mechanism of origin of the superficial effect.