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Deflection Of Oscilloscope Beam Using A Magnet


Deflect a beam of electrons. Classes Used: Phys 102, 108

Updated on: 06/13/13


To show the force on a beam of electrons when a magnetic field is applied. To show that a flow of electrons is equivalent to a conventional current in the opposite direction.


Oscilloscope with case opened, bar magnet


The special oscilloscope can be set up to show the exposed neck of the tube. When a magnet is brought near the neck of the oscilloscope, the electron beam will move.


You can use the right-hand rule to label an unknown magnet by observing the deflection of the electron beam. Alternately, if the polarity is known, you can predict the deflection.

Demo room information

Location OPQ0
Maker Unknown
Current State Working
demonstrations/5_electricity_and_magnetism/5h_magnetic_fields_and_forces/deflection_of_oscilloscope_beam_using_a_magnet/start.txt · Last modified: 2020/01/28 18:33 by demoroom