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Physics #1
Accelerated Christian Edu. PACE 1120 for misc. definitions
| Term | Definition |
|---|---|
| Vacuum Tube | Evacuated glass bulb in which an electric current flows across vacuum from cathode to anode. |
| Geissler Tube | Gas-discharge tube. |
| Crookes Tube | Cathode ray tube. |
| Thermionic Emission | Emission of electrons from a hot, glowing object. |
| Edison Effect | Glow caused by thermionic emission. |
| Rectifier | Any device that converts AC to DC. |
| Diaphragm | Thin, flexible metal piece covering box in telephone mouthpiece. |
| Modulated Radio Wave | Produced by impressing an audio-frequency wave upon a carrier. |
| Transmitter | Generates a carrier wave. |
| Modulator | Combines audio-frequency and carrier wave to produce a modulated radio wave. |