The Lorentz Force


The Lorentz force is the force experienced by a moving charged particle in an electric and magnetic field. The magnetic component is:


where F is the force (in newtons, N), q is the electric charge (in coulombs, C), v is the velocity of the charged particle (in m·s−1) and B is the magnetic field strength (in teslas, T).


An electric motor works by using a source of emf to make a current flow in a loop of conductor such that the Lorentz force on opposite sides of the loop are in opposite directions which can cause the loop to rotate about a central axis.

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