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  • The base current of transistor is 105 A and collector current is 2.05 mA. Which of the following result about is/are correct?<div class='qna-opti

The base current of transistor is 105 \muA and collector current is 2.05 mA. Which of the following result about is/are correct?

Option: 1

IE = 2.155 mA


Option: 2

\beta =19.5


Option: 3

\alpha =0.95


Option: 4

All of the above


Answers (1)

best_answer

As we learn

Use of multimetre to identify base of transistor -

There are three legs which make the three terminals

* Collector leg is on other side and is separated from other two legs, i.e base and emitter

* There is notch or dot near collector

* Central leg is base 

 

 

  I_{B}=105 \mu A =0.105 mA

 I_{C}=2.05 mA

\Rightarrow I_{E}=I_{C}+I_{B}= 2.155 mA

\beta = \frac{I_{C}}{I_{B}}=\frac{2.05}{0.105}=19.5

\alpha = \frac{I_{C}}{I_{E}}=\frac{2.05}{2.155}=0.95

 

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Sayak

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