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Code Number: 5H30.05
Demo Title: e/m - TV and Magnet
Condition: Excellent
Principle: Measure e/m of Electrons
Area of Study: Electricity & Magnetism
Equipment:
Old Black and White or Color TV and Horseshoe Magnets or Large Neodymium Magnets.
Procedure:
An old TV may be used to show beam deflection when a magnet is brought close to the TV screen.
References:
- James Lincoln and Nick Moore, "Five Fresh Lorentz Force Demos", TPT, Vol. 57, #8, Nov. 2019, p. 572.
- Marcelo M. F. Saba, "Right-Hand Rule with Magnet and Monochrome Monitor", TPT, Vol. 36, #3, Mar. 1998, p. 190.
- "Black and White TV and Magnetism", The Exploratorium Science Snackbook, p. 9.1 - 9.2.
- Ron Hipschman, "Color Television and Magnetism", Exploratorium Cookbook III, p. 139.1 - 139.2.
- Brian Jones and Matt Fackelman, "Rainbow Vision - Don't Try This On Your TV!", Don't Forget the Duct Tape! - The How and Why of the Experiments of the Little Shop of Physics - A Work in Progress, p. 109.
- "The Cathode Ray Oscilloscope", Selective Experiments in Physics, CENCO, 1962.