Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Free Charge Carriers in a Vacuum – Thomson Tube


Investigate the deflection of electrons.

  • Includes all major components
  • Bright electron beam
  • Vary the accelerating potential and magnetic field independently
The experiment investigates the deflection of electrons in electric and magnetic fields. For different anode voltages UA, the beam path of the electrons is observed when the deflection volt- age UP at the plate capacitor is varied. Additionally, the electrons are deflected in the magnetic field of the Helmholtz coils by varying the coil current I. The point at which the electron beam emerges from the fluorescent screen gives us the radius R of the orbit. When we insert the anode voltage in the following equation, we can obtain an experimental value for the specific electron charge, the magnetic field B is calculated from the current I.

A velocity filter (Wien filter) is constructed using crossed electrical and magnetic fields. Among other things, this configuration permits a more precise determination of the specific electron charge. At a fixed anode voltage UA, the current I of the Helmholtz coils and the deflection voltage UP are set so that the effects of the electric field and the magnetic field just compensate each other. The path of the beam is then virtually linear.

Electron deflection tube
Tube stand
Pair of Helmholtz coils
High-voltage power supply 10 kV (2)
DC Power Supply 0...16 V/0...5 A
Safety connection lead 25 cm, red (2)
Safety connection lead 50 cm, red
Safety connection lead 50 cm, blue
Safety connection lead 100 cm, red (3)
Safety connection lead 100 cm, blue (3)
Safety connection lead 100 cm, black (2)


   
 

ORDER

Item # Description Unit Availability Price Quantity
470220-104 Free Charge Carriers in a Vacuum – Thomson Tube
Kit of 1 Retrieving

PRODUCT RESOURCES

WRITE A REVIEW

Need help?

  • Whatever you have to say, positive or negative, is important to us.
  • Providing feedback takes only seconds.
  • Your feedback will be made available to the public on the web.

SARGENTWELCH.com will publish your name as sargentwelch.com user.
You can use this name, or edit and save a nickname.
We recommend authors use their first and last initial.

Please confirm your profession

Example: Education

Please confirm your role

Example: Teacher

Please confirm your location

Example: New York, NY

REVIEWS (0)

Total Ratings: 0
Avg. Ratings: 0.0 out of 5

Sort all by:

 
Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty