Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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You have selected the following Demos:
video - Magnetic Deflection of an Electron Beam
Purpose:To demonstrate that an electron in a magnetic field experiences a force.
Turn on the power supply. Voltage should be set to about to 2.5 kV. Use a bar magnet to deflect the beam. Take the opportunity to illustrate the right hand rule using both poles of the magnet. Remember, electrons are negatively charged!
Hints:In PHS 203, turn the chalkboard lights ON and turn OFF the first two rows of fluorescent lights, then the electron beam spot is more visible via Camera/West.