Transistor is a semiconductor device which is used to amplify the signals as well as in switching circuits.
Generally transistor is made of solid material which contains three terminals such as emitter (E), Base (B) and Collector (C) for connections with other components in the circuit.
BJT : Bipolar Junction Transistor
FET : Field Effect Transistor
PNP : Positive, Negative, Positive
NPN : Negative, Positive, Negative
JFET : Junction-gate Field-Effect Transistor
MOSFET : Metal- Oxide-Semiconductor-Field Effect Transistor
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