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General Information on the Lorentz Force
Without a Magnetic Field
Electrons are emitted from the cathode (-). On their way to the anode (+), they are accelerated by the applied voltage. The electrons travel in a straight line.
With a Magnetic Field
The interaction with the magnetic field (e.g., that of a coil) causes a deflection of the previously straight electron beam. The magnetic field generates a Lorentz force that forces the electrons into a circular path, as seen in the demonstrated experiment, when they move perpendicular to the magnetic field.
Further knowledge on the topic of the Electromagnetic Induction can be found in the book selection on Amazon:
Book Recommendation on Amazon: Lorentz Force
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