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Q.

What do u mean by FET?

Asked by Girdhari Soni, 20 Feb '09 12:54 am
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Answers (3)

1.

The field-effect transistor (FET) is a type of transistor that relies on an electric field to control the shape and hence the conductivity of a channel of one type of charge carrier in a semiconductor material. FETs are sometimes called unipolar transistors to contrast their single-carrier-type operation with the dual-carrier-type operation of bipolar (junction) transistors (BJT). The concept of the FET predates the BJT, though it was not physically implemented until after BJTs due to the limitations of semiconductor materials and relative ease of manufacturing BJTs compared to FETs at the time . All FETs have a gate, drain, and source terminal that are roughly similar to the base, collector, and emitter of BJTs. Aside from the JFET, all FETs also have a fourth terminal called the body, base, bulk, or substrate. This fourth terminal serves the technical purpose of biasing the transistor into operation; it is rare to make non-trivial use of the body terminal in circuit designs, ...more
Answered by suvendu dalai, 20 Feb '09 02:17 pm

 
  
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2.

Field Effect Transistor. Its a voltage controlled transistor in which the source to drain conduction is controlled by gate to source voltage.
Answered by Joseph Chacko, 20 Feb '09 04:41 am

 
  
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3.

Field Effect Transistor - check the link below:

http://www.google.com/search?hl=en&q=Field+Effect+Trans istor&btnG=Google+Search&meta=
Answered by viswanath vishnubhotla, 20 Feb '09 01:00 am

 
  
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