Description: Resultant and power of the Laplace forces acting on a conductive bar in rectilinear translation on two parallel rails (Laplace rails) in a uniform external magnetic field, stationary and orthogonal to the bar.
Definitions
Lorentz force: When a wire carrying an electric current is placed in a magnetic field, each of the moving charges, which comprise the current, experiences the Lorentz force, and together they can create a macroscopic force on the wire (sometimes called the Laplace force). By combining the Lorentz force law above with the definition of electric current, the following equation results, in the case of a straight, stationary wire. F = Il x B