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Q. What is Pure semiconductors?
Pure semiconductors, known as intrinsic semiconductors, have very few charge carriers and may hence be classified as almost insulators or very poor electrical conductors. However, by adding (through a process known as doping) tiny controlled amounts of impurities (such as boron, gallium, indium, antimony, phosphorus, or arsenic), a semiconductor can be made to contain a desired number of either holes or free electrons and is then known as extrinsic (impure) material. A p-type semiconductor contains primarily holes, whereas an n-type semiconductor contains primarily free electrons. While holes are the majority carriers in a p-type material, it is possible to inject electrons artificially into p-type material, in which case they become excess minority carriers. Minority carriers do play a vital role in certain devices. The doping substance is called an acceptor when the extrinsic semiconductor is the p-type with holes forming the majority carriers and electrons forming the minority carriers. The doping substance is known as the donor when the extrinsic semiconductor is the n-type with free electrons forming the majority carriers and holes forming the minority carriers. Both p- and n-type semiconductors are vitally important in solid-state device technology. Diodes, transistors, and other devices depend on the characteristics of a pn-junction formed when the two materials are joined together as a single crystal.
How will you fine-tune a class? It is useful to fine-tune classes before writing code in order to examine development or to improve performance. The purpose of execution is to
Q. Explain Bus Interface Unit? BIU (Bus Interface Unit) mainly interacts with system bus. It executes nearly all the activities relating to fetch cycle like: Computing
1. Introduction to Software Metrics in Software Engineering.? 2. Role of direct and indirect measures in software process management? 3. Stance taken and justification? 4. Conclusi
Rounding off of values can be carried out using the write statement. Yes, Rounding off value can be out by using the write statement.
What are parity generator and checker? Ans: While a digital signal is transmitted, this may not be received correctly through the receiver. At the receiving end this may o
a) Briefly describe the relationship between distributed computing, mobile computing and pervasive computing. b) Suppose the following scenario, which demonstrate the possibili
Q. What are the limitations of a cyclotron? Limitations (i) Maintaining a consistent magnetic field over a large area of the Dees is difficult. (ii) At high rapidity
When entering word into the cell, press Alt-Enter to insert a line break. When you do so, Excel will automatically give text wrapping to the cell. To reformat existing cells s
Is it possible to extract data from tables without using the event 'GET' in the report with an appropriate LDB. False. You can extract data from tables using Select stateme
What are the Main aspects available in all word processors - Ability to set page size and page orientation - Ability to change font size and font style (for example Arial,
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