P3-25: CATHODE RAY TUBE - CONCAVE CATHODE
- ID Code: p3-25
- Purpose: Show what happens in a discharge tube as the pressure is changed.
- Description: Turn the pump on and off for brief periods to vary the pressure while observing the effect on the discharge. A gauge on the pump reads the pressure.
- Availability: Available
- References: http://lecdem.physics.umd.edu/images/refs/refsp.htm#P3-25