Diode and thermionic emission. Diagram showing a diode, consisting of a glass bulb containing two metal electrodes in a vacuum. The cathode is an electric filament (red) and the anode is a metal plate (black). When the cathode is heated it emits electrons (thermionic emission). The electrons are attracted to the anode, creating a current in the circuit, displayed by the ammeter. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4181 px × 4181 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |