![]() Conduction Band (C): The topmost partially filled band, is called Conduction band.Due to interatomic interaction, the different energy levels with continuous energy variation form is called energy band. The energy levels (values) of electrons in outer shells are influenced in the presence of nuclei of other atoms. (b) Energy Bands in Solids (Crystals): In a crystal, atoms are packed very closely. They are represented by straight lines drawn parallel to each other at distances proportional to the energy they represent. Hence, each electrons will have a different energy levels. These definite energy values, are called energy levels of the atoms. Energy of electrons in each subshell is definite. (a) Energy Levels in Atoms: In an atom electrons revolve around the nucleus in almost circular orbits of different radii representing shells and subshells. The solid state devices are better than vacuum tubes because vacuum tubes are bulky, consume high power and voltage (≈100 V), low life and low reliability while solid state devices are small in size, consume low power and low voltage, long life and high reliability. Solid state electronic devices: The semiconductors are the basic materials for designing the solid state electronic devices such as junction diode (2-electrodes), transistor (3-electrodes) and integrated circuits (IC).Vacuum tubes: Vacuum diodes (cathode, anode) triode (three electrodes) and pentode (five electrodes) etc.Electronic devices sire the building blocks of all the electronic circuits. The devices whose action is based on the controlled flow of electrons through it is called an electronic devices. Lakhmir Singh Science Class 8 Solutions.PS Verma and VK Agarwal Biology Class 9 Solutions.NCERT Solutions for Class 9 Foundation of IT.NCERT Solutions for Class 9 Social Science.NCERT Solutions for Class 10 Foundation of Information Technology.NCERT Solutions For Class 10 Hindi Kritika.NCERT Solutions For Class 10 Hindi Kshitiz.NCERT Solutions For Class 10 Hindi Sparsh.NCERT Solutions For Class 10 Hindi Sanchayan.NCERT Solutions for Class 10 Social Science.NCERT Solutions for Class 11 Indian Economic Development.NCERT Solutions for Class 11 Political Science.NCERT Solutions for Class 11 Psychology.NCERT Solutions for Class 11 Entrepreneurship.NCERT Solutions for Class 11 Accountancy.NCERT Solutions for Class 11 Business Studies.NCERT Solutions for Class 11 Computer Science (Python).NCERT Solutions for Class 12 Psychology. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |