Coulomb and Biot-Savart Laws.

Version 0.1 11-2-08

To do:

(i) Other source currents

Permittivity, permeability, current and/or linear charge density.

Current path X and its Frenet vectors: the unit tangent T, normal N and binormal M.

For now, a spiral with variable radius and pitch.

Source current:

Source segment:

Absolute field point F:

Field point relative to X(s) [h,k,l are like spherical theta, phi, r relative to the curve's Frenet vectors T,N,E]:

Field point R relative to X(s) – specified absolutely if q=0 and relative to X(s) if q=1:

Magnetic Field due to source segment at field point:

Electric Field due to source segment at field point:

Author: David A. Craig <http://web.lemoyne.edu/~craigda/>

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