FiniteStraightWire

class plasmapy.formulary.FiniteStraightWire(p1: Unit(‘m’), p2: Unit(‘m’), current: Unit(‘A’))

Bases: plasmapy.formulary.magnetostatics.Wire

Finite length straight wire class.

The p1 to p2 direction is the positive current direction.

Parameters

• p1 (Quantity) – Three-dimensional Cartesian coordinate of one end of the straight wire.

• p2 (Quantity) – Three-dimensional Cartesian coordinate of another end of the straight wire.

• current (astropy.units.Quantity) – Electric current.

Methods Summary

magnetic_field(p)	Calculate magnetic field generated by this wire at position p
to_GeneralWire()	Convert this Wire into a GeneralWire.

Methods Documentation

magnetic_field(p)

Calculate magnetic field generated by this wire at position p

Parameters

p (astropy.units.Quantity) – Three-dimensional position vector

Returns

B – Magnetic field at the specified position

Return type

astropy.units.Quantity

Notes

Let \(P_f\) be the foot of perpendicular, \(θ_1\) (\(θ_2\)) be the angles between \(\overrightarrow{PP_1}\) (\(\overrightarrow{PP_2}\)) and \(\overrightarrow{P_2P_1}\).

to_GeneralWire()

Convert this Wire into a GeneralWire.