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Lecture 2: Bipolar Junction Transistor : Modes of operation - I

Modes of Operation

 Depending on bias condition (forward or reverse) of pn junctions, different modes of operation of BJT.
 Active mode(forward active mode)
 Saturation mode
 Cutoff mode
 Reverse active mode
 Transistor operates as an amplifier in active mode.
 Transistor operates as a switch in both cutoff and saturation mode.













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