State the application of FET

2 Answers

Answer :

Applications of FET: 

 i. It is used as a high impedance wideband amplifier. ii. It is used as a buffer amplifier. iii. It is used as an electronic switch. iv. It is used as a phase-shift oscillator. v. It is used as a constant current source. vi. It is used as a voltage variable resistor (VVR) or voltage dependent resistor (VDR)

Answer :

Applications of FET : * As input amplifiers in oscilloscopes, electronic voltmeters and other measuring and testing equipment because high input impedance reduces loading effect to the minimum. * As Constant current source. * They are used to build RF amplifiers in FM tuners and other communication circuits. Because of low noise. * FETs are used in mixer circuits of FM and TV receivers as it reduces inter modulation distortion. * Used as Analog switch. * As a Voltage Variable Resistor (VVR) in operational amplifiers.

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