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MIT Physics 8.02 - Electricity & Magnetism
 
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Technology Enabled Active Learning

Visualizing Electricity and Magnetism at MIT


More Examples:

Title: Two Rings of Current Repelling

This is an animation of the magnetic field generated by two coils carrying unequal currents in opposite directions. When the current is turned on, the resulting magnetic field pressure between the two rings pushes the them apart. The motions of the field lines are in the direction of the local Poynting flux vector. Set Windows Media Player to "repeat".

 
Title: Dipole Radiation

An animation of electric dipole radiation is presented. The dipole moment vector is always vertical, and its magnitude varies sinusoidally by 10%. We show the fields in the quasi-static zone, the induction zone, and the radiation zone. The motions of the field lines are in the direction of the local Poynting flux vector. Set Windows Media Player to "repeat".
 
Title: Simulation of a Nucleus and Four Electrons

A simulation of how an atom might form. A nucleus with a positive net charge attracts four electrons, which are eventually "captured" and held in a stable configuration. The quantum mechanical "Pauli" force prevents the particles from collapsing in on one another, while a damping term allows them to "settle down".


 
Title: The Ion Trap

Twelve identical charges in a potential well that forces them together against their mutual repulsion. Select "Fullscreen Version". Left click and drag to rotate the camera. Shift click on a given charge to move it with the arrow keys. Press "p" or "n" to add charges of positive or negative sign. Press "s" for a bounding polygon after the charges have settled down.

 
Title: Colliding Lattices

Colliding Lattices simulates the interaction of charged particles in two dimensions. In this program, you can observe the results of a collision between two rectangular lattices of variable dimensions and initial velocities. Select "Fullscreen Version". After selecting a dimension, position, and velocity for each, click the "Start" button to run the simulation.

 


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