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Q. What are the applications of JFET?
· FET is used as a buffer in measuring instruments, receivers since it has high input impedance and low output impedance.
· FET's are used in RF amplifiers in FM tuners and communication equipment for the low noise level.
· Since the input capacitance is low, FET's are used in cascade amplifiers in measuring and test equipment.
· Since the device is voltage controlled, it is used as a voltage variable resistor in operational amplifiers and tone controls.
· FET's are used in mixer circuits in FM and TV receivers and communication because the inter modulation distortion is low.
· It is used in oscillator circuits, because frequency drift is low.
· As the coupling capacitor FET's are used in low frequency amplifiers in hearing aids and inductive transducers.
· FET's are used in digital circuits in computers, LSD and memory circuits because of its small size.
Q. Write a note on emitter follower? The emitter follower (EF) configuration is shown The emitter follower (EF) configuration is shown The EF amp has a voltag
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