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What is FET?

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FET is a device in which the flow of current through the conducting region is controlled by an electric field, Hence the name Field Effect Transistor ( FET ) . As current conduction is only by majority carriers, FET is said to be a unipolar device. As the output voltage of a FET is controlled by the gate input voltage, FET is called as the voltage control device. Types of FET  - There are two main types of FET. They are JFET & MOSFET. Junction Field Effect Transistor  (JFET ) - JFET is a three terminal semiconductor device in which current Conduction takes place only due to the flow of majority charge carriers. There are three terminal of JFET are source,drain & gate.  Source   ( S ) - Source terminal provides majority charge carriers,whose movement generates a current through the device. Drain ( D ) - Drain terminal is present at the opposite end of the source terminal.The majority charge carriers move from an end to other and get collected at t...