Path: Electrical/Electromagnetism
% The Biot Savart law
The Biot Savart law computes the magnetic field vector given current
elements. The vector from i to r is done from the middle of each element.
If this would cause a divide by zero it adjusts the location. You may
still get unphysical answers if the position is too close to the loop.
i may be a vector of data structures. For closed loops include the
first and last point in i(k).node.
Type BiotSavart for a demo of a straight line and current loops.
--------------------------------------------------------------------------
Form:
b = BiotSavart( i, r )
--------------------------------------------------------------------------
------
Inputs
------
i (.) Data structure of currents
.node (3,:) Current element nodes. Units are meters.
.mag (1,1) Magnitude of the current. Units are Amperes.
r (3,:) Locations. Units are meters.
-------
Outputs
-------
b (3,:) Field vector at the grid points. Units are Tesla
--------------------------------------------------------------------------
Common: Graphics/NewFig Math: Linear/Cross Math: Linear/Mag Math: Linear/Unit
Back to the Electrical Module page