What are the requirements for BJT to operate in: a) active mode? b) saturation mode? c) cutoff mode? Explain

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Fig. 1 is a simplified structure of the npn transistor.
What are the requirements for BJT to operate in:
a) active mode?
b) saturation mode?
c) cutoff mode?
Explain 

 

Emitter
(E)
Fig. 1.
n-type
Emitter
region
Emitter-base
junction
(EBJ)
p-type
Base
region
Base
(B)
n-type
Collector
region
Collector-base
junction
(CBJ)
Metal
contact
Collector
(C)
Transcribed Image Text:Emitter (E) Fig. 1. n-type Emitter region Emitter-base junction (EBJ) p-type Base region Base (B) n-type Collector region Collector-base junction (CBJ) Metal contact Collector (C)
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