Stability	experimental
Maintainer	Scott N. Walck <walck@lvc.edu>
Safe Haskell	Trustworthy

Physics.Learn.Current

Contents

Current
Magnetic Field
Magnetic Flux

Description

This module contains functions for working with current, magnetic field, and magnetic flux.

Synopsis

Current

type Current = Double Source

Current is just a synonym for a double-precision floating point number.

data CurrentDistribution Source

A current distribution is a line current (current through a wire), a surface current, a volume current, or a combination of these. The VectorField describes a surface current density or a volume current density.

Constructors

LineCurrent Current Curve	current through a wire
SurfaceCurrent VectorField Surface	`VectorField` is surface current density
VolumeCurrent VectorField Volume	`VectorField` is volume current density
MultipleCurrents [CurrentDistribution]	combination of current distributions

Magnetic Field

bField :: CurrentDistribution -> VectorField Source

The magnetic field produced by a current distribution. This is the simplest way to find the magnetic field, because it works for any current distribution (line, surface, volume, or combination).

bFieldFromLineCurrent Source

Arguments

:: Current	current (in Amps)
-> Curve	geometry of the line current
-> VectorField	magnetic field

Magnetic field produced by a line current (current through a wire). The function bField calls this function to evaluate the magnetic field produced by a line current.

bFieldFromSurfaceCurrent Source

Arguments

:: VectorField	surface current density
-> Surface	geometry of the surface current
-> VectorField	magnetic field

Magnetic field produced by a surface current. The function bField calls this function to evaluate the magnetic field produced by a surface current. This function assumes that surface current density will be specified parallel to the surface, and does not check if that is true.

bFieldFromVolumeCurrent Source

Arguments

:: VectorField	volume current density
-> Volume	geometry of the volume current
-> VectorField	magnetic field

Magnetic field produced by a volume current. The function bField calls this function to evaluate the magnetic field produced by a volume current.

Magnetic Flux

magneticFlux :: Surface -> CurrentDistribution -> Double Source

The magnetic flux through a surface produced by a current distribution.