Energy Band Theory of Crystals: Energy Band Theory of Crystals - As discussed above, it is revealed that most metals and semiconductors are crystalline in structure and a crystal is…
Compound Semiconductor Materials: Most of the compound semiconductor materials are formed from the combinations of group III and group V elements. A portion of the periodic table listing the more…
Elemental Semiconductor Materials: Group IV includes five elements viz., Carbon (C), Silicon (Si), Germanium (Ge), Tin (Sn) and lead (Pb). The elements of this subgroup show marked similarity as well…
Thyratron Working Principle: Thyratron is a hot cathode gas filled triode. Normally it is filled with a small amount of inert gas such as argon, hydrogen, neon or mercury vapour.…
Vacuum Triode, Construction and Working: Construction of Vacuum Triode - The construction and the schematic symbol used for a vacuum triode are illustrated in Fig. 5.8. It, as the name…
What is Cathode or Emitter and Types of Cathode? The substance employed for electron emission is called a cathode or emitter. It is an essential part of an electron tube.…
Electron Orbits and Energy Levels: As already discussed above electron orbits can occupy only certain rings or shells at fixed distances from the nucleus. These shells may be circular or…
Single Mesh and Multi Mesh Network: Electric network may provide a single closed path (known as a mesh or loop) or several closed paths for the flow of current. An…