Falling Bar in a B Field Model Documents
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Main Document
written by
Armando Pisani
The Falling Bar in a Magnetic Field model displays the non-uniform motion of a conducting bar as it slides along a vertical U shaped wire with resistance R. The apparatus is imbedded in a magnetic field that is B perpendicular to the plane of the bar. The Faraday-Neumann-Lenz law for electromagnetic induction produces a motional emf and an electric current that interacts with the external field. The motion of the bar shows that the bar's velocity exponentially approaches a terminal value.
The Falling Bar in a Magnetic Field model was created using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double click the jar file to run the program if Java is installed.
Published April 28, 2021
Last Modified April 28, 2021
Supplemental Documents
Motion of a conducting bar in an uniform magnetic field description.
Last Modified April 28, 2021
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Falling Bar in a B Field Model
