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e / m Electron Indication Experiment

- Movement within a magnetic field next to electrons under different voltages

- Study of the Lorentz force and the Biot-Sawart law for various accelerating voltage and current values according to the orbit of the electron beams

- Calculation of the magnetic field generated by two Helmholtz coils passing through the electric current

- Experimental determination of charge / mass (e / m) ratio of cathode rays (electrons)




An electromagnetic Lorentz force is applied to an electron moving at a velocity v perpendicular to a uniform magnetic field (B) perpendicular to the velocity and magnetic field. You will be learning how to calculate the specific weight of an electron-based on this information. Don’t forget to check your data during the experiment.