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Magnetic field, vector potential and their derivatives due to currents in closed polygons of wire

✍ Scribed by D.K. Lee

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 645 KB
Volume: 25
Category: Article
ISSN: 0010-4655
DOI: 10.1016/0010-4655(82)90034-0

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✦ Synopsis

Title ofprogram: BWIRE

(2) current-carrying closed polygon (not necessarily plane) consisting of three or more straight wires of finite length.

Catalogue number: AARP

Method of solution Program obtainable from: CPC Program Library, Queen's Urn-Explicit expressions for the magnetic field, the magnetic vector versity of Belfast, N. Ireland (see application form in this issue) potential, their partial derivatives and many other related quantities are derived analytically in the Cartesian coordinate sys-

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## Abstract The time‐varying magnetic field gradients used in MRI can cause peripheral nerve stimulation (PNS) in human subjects, as a result of the electric fields induced in tissue. The local electric field, E, is given by E = −∂A/∂t − ∇ϕ where A, is the vector potential and ϕ is the scalar elect