Video: Watch this demo
Description: This demonstration shows what happens when you bring a magnet near a CRT.
The magnet bends the electron beam so the electrons no longer hit the correct phosphors on the screen,
which messes up the colors.
- Color Cathod Ray Tube (such as TV or monitor) that can be ruined
- Cow Magnet or Bar Magnet
- Electric Magnetizer
- Using the electric magnetizer, magnetize two bar magnets.
- Tune the TV to either a white screen or a video feed.
- Bring the magnet near the screen and note the changes in color.