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.
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Form:
b = BiotSavart( i, r, doPlot )
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Inputs
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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.
doPlot (1) Create plots
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Outputs
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b (3,:) Field vector at the grid points. Units are Tesla
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Common: Graphics/NewFig Math: Linear/Cross Math: Linear/Mag Math: Linear/Unit
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