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Class Notes of BET102 Basic Electronics Engineering Common ...

Class Notes of BET102 Basic Electronics Engineering Common to 1st /2nd Semester of Diploma in Engineering . Under SCTE&VT , Odisha. Prepared By: Rajendra Kumar Prusty Asima Rout Sarat Kumar Muduli BET-102 Basic Electronics Engineering . Chapter-1 1. ELECTRONIC DEVICES Define Electronics & its application. The world's reliance on Electronics is so great that commentators claim people live in an "electronic age." People are surrounded by Electronics televisions, radios, computers, mobiles, Laptop and DVD players, along with products with major electric components, such as microwave ovens, refrigerators, and other kitchen appliances, automatic vehicles, Robotics, as well as hearing aids and medical instruments and numerous applications in industry. Definition: The branch of Engineering which deals with current conduction through a Vacuum or Gas or Semiconductor is known as Electronics .

2. Field Emission - (Due to application of strong electric field) 3. Secondary Emission – (due to bombardment of high-speed electrons) 4. Photo Electric Emission – (by the application of light) 1. Thermionic Emission The process of electron emission from a metal surface by supplying thermal energy to it is known as Thermionic emission.

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