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Transfer characteristics [output voltage (V0) vs input voltage (Vi)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used:

Option: 1

In region III


Option: 2

Both in region (I) and (III)


Option: 3

In region II


Option: 4

In region I


Answers (1)

As we learned in

Transistor -

Three layered semiconducting device .

NPN or PNP

- wherein

1.    Emitter is heavily doped

2.    collector is moderately doped .

3.    Base is lightly doped & very thin

 

 

 

For using transistor as a switch it is used in cut off state and saturation state only.

Posted by

Kshitij

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