If are the mobility constants of electron and holes of Ge & Si respectively at T =270 C, then

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Find the input resistance of the circuit shown below.

1.  

2.  R

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Find the concentration of holes in P type Ge at 300K , If conductivity is 100

1.  3.48*1017cm-3

2.  1.838*109cm-3

3.  2.5*1013cm-3

4.  None

View Answer  
4
Correct Answer :

3.48*1017cm-3


Explanation :
No Explanation available for this question

In the circuit shown below the effective resistance faced by voltage source is

1.  

2.  

3.  

4.  None of these

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Most stable transistor circuit is

1.  Fixed bias circuit

2.  Emitter stabilized bias circuit

3.  Voltage divider bias circuit

4.  None of these

View Answer  
4
Correct Answer :

Voltage divider bias circuit


Explanation :
No Explanation available for this question

The equivalent base resistance of the given circuit is

1.  2.5k

2.  3.55k

3.  3.9k

4.  7.9k

View Answer  
4
Correct Answer :

3.55k


Explanation :
No Explanation available for this question

β of a transistor

1.   Decreases with increase of temperature

2.  Increases with increase of temperature

3.  Remains same with increase of temperature

4.  None of these

View Answer  
4
Correct Answer :

Increases with increase of temperature


Explanation :
No Explanation available for this question

In a semiconductor the hole diffusion length lp is given by where Dp= diffusion constant and Tp=Mean life time

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

What is VAB

1.  6V

2.  10V

3.  25V

4.  40V

View Answer  
4
Correct Answer :

6V


Explanation :
No Explanation available for this question

Reverse saturation current in a transistor

1.  Decreases with increase of temperature

2.  Decreases with increase in temperature

3.  Remains same with increase in temperature

4.  None of these

View Answer  
4
Correct Answer :

Decreases with increase of temperature


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python