Electron beam demonstrator
A demonstration device with a cathode ray tube to show the movement of electrons and the effect of a magnetic field on an electron beam.
The apparatus uses a gas-filled cathode-ray tube mounted on a base with a control panel containing a rocker switch, deflection direction switch, deflection control knob and power indicator. It supports four demonstrations: straight-line motion of accelerated electrons in the absence of fields; beam deflection by the built-in electromagnet, with adjustable direction and angle; the Lorentz force in the field of a permanent magnet; and thermionic emission. Designed for electrodynamics demonstrations on the teacher’s desk in a physics classroom.
- 1.Base with control panel - 1 pc.
- 2.Cathode ray tube (gas-filled) - 1 pc.
- 3.Rocker switch "ON [−O] OFF" — 1 pc.
- 4.Deflection direction switch - 1 pc.
- 5.Deflection control knob - 1 pc.
- 6.Power indicator - 1 pc.
- Rectilinear motion of accelerated electrons in the absence of external electric and magnetic fields
- Deflection of the electron beam under the influence of electromagnetic force: dependence of the deflection angle on the current of the built-in electromagnet, change in the direction of deflection (“up” / “down”)
- Action of the Lorentz force on an electron beam in the magnetic field of a permanent magnet
- Thermionic emission
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