Free Electrons in Gases and in a Vacuum
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- Suitable for use with the Perrin Tube D
- Provides an extra coil
- Helps create an additional magnetic field
- Demonstrates the principles of oscilloscope
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- Allows electrical and magnetic fields to be studied
- Path of the beam is made visible
- Features an electrode tube, gun and a fluorescent screen
- Can determine the velocity of the electrodes
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