Deflection E-M Tube Manufacturer,Supplier and Exporter in Africa
Product Code : DA-AAN-11409
Quick Answer: The Deflection E-M Tube is used to investigate electron beams in electric and magnetic fields and to determine the specific charge e/m. Its beam path shows on a fluorescent grid inclined 15 degrees to the beam axis.
Last updated: October 2026
Key Features
- Fluorescent grid inclined 15 degrees to the beam axis
- Integrated focusing electrode system
- Integrated plate capacitor, used with the Helmholtz coils to deflect the beam
- Determines e/m by compensating magnetic deflection with electrostatic deflection
- Also used to estimate the speed of electrons
About This Product
The tube lets students compare how an electron beam bends in electric and magnetic fields. When the magnetic deflection is compensated by electrostatic deflection, the specific charge e/m can be determined, and the same arrangement gives an estimate of electron speed. The beam's path is traced on the inclined fluorescent grid, with an integrated focusing electrode system keeping it sharp.
Frequently Asked Questions
Q1. How does the Deflection E-M Tube determine e/m?
By compensating the magnetic deflection of the electron beam with electrostatic deflection, using the integrated plate capacitor and the Helmholtz coils.
Q2. Is the beam path visible?
Yes. It shows on a fluorescent grid inclined 15 degrees in relation to the beam axis.
Related: Atoms and Nuclei range, Helmholtz Coils, Universal Stand, Teltron Dual Beam Tube.
For a quotation on the Deflection E-M Tube, contact Didactic Africa.
