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Specific charge of the electron - e/m

Specific charge of the electron - e/m

Item no.: P2510200

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Principle

Electrons are accelerated in an electric field and enter a magnetic field at right angles to the direction of motion. The specific charge of the electron is determined from the accelerating voltage, the magnetic field strength and the radius of the electron orbit.

Tasks

Determination of the specific charge of the electron (e/m0) from the path of an electron beam in crossed electric and magnetic fields of variable strength.

What you can learn about

  • Cathode rays
  • Lorentz force
  • Electron in crossed fields
  • Electron mass
  • Electron charge

Benefits

  • Neon-filled narrow beam tube for perfect visibility of the electron beam

  • High-precise and easy to perform measurements with the built-in fluorescent ladder construction

  • Suitable for demonstration and lab courses as well
  • Large Helmholtz coils to generate a large volume homogeneous magnetic field. Can be used in a lot of different experiments
  • The observation chamber allows to perform the experiment in spite of daylight

 

Specific charge of the electron e/m

Specific charge of the electron e/m

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