Diffusion constant and mobility of an electron are related as

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

If Vout= 1V for 1 KHz input then what would be Vout for 10 KHz for same input

1.  0.1 V

2.  0.01 V

3.  1 V

4.  None of these

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4
Correct Answer :

1 V


Explanation :
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For a MOSFET the input resistance is

1.   109-1010

2.  1012-1015

3.  1

4.  100

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4
Correct Answer :

1012-1015


Explanation :
No Explanation available for this question

If two semiconductor have exactly have exactly same properties expect that the material A has a band gap of 1.5ev and material A has a band gap of 1.7ev, then the ratio of intrinsic concentration of material A to material B at 300 k is

1.  47.5

2.  1048

3.  2016

4.  58.23

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4
Correct Answer :

47.5


Explanation :
No Explanation available for this question

The value of gmo of JFET (IDSS=8mA, VP=-4V) biased at VGs=-1.8V is

1.   4ms

2.  1 S

3.  4x103 S

4.  Data insufficient

View Answer  
4
Correct Answer :

4x103 S


Explanation :
No Explanation available for this question

A FET approximate ac equivalent model is given as

1.  

2.  

3.  

4.  None of these

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4
Correct Answer :


Explanation :
No Explanation available for this question

The maximum voltage gain that can be achieved from a FET having Yfs=5ms and Yos=20S is

1.  500

2.  -250

3.  100

4.  10

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4
Correct Answer :

-250


Explanation :
No Explanation available for this question

In Si at T=300k if the Fermi level is0.22ev above valence band , then the value of hole concentration po is

1.  1015 cm-3

2.  2*1015 cm-3

3.  3*1015 cm-3

4.  4*1015 cm-3

View Answer  
4
Correct Answer :

2*1015 cm-3


Explanation :
No Explanation available for this question

If a sample of Si at T =300K is doped with boron at the concentration of 2*1013cm-3and with arsenic at a concentration of 1*1013cm_3 then the material is

1.  p-type with p0=1.5*107 cm_3

2.  n-type with p0=1.5*107 cm_3

3.  p-type with p0=1.0*1013 cm_3

4.  p-type with p0=1.0*1013 cm_3

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4
Correct Answer :

p-type with p0=1.0*1013 cm_3


Explanation :
No Explanation available for this question

In analog CMOS

1.   Enhancement type MOSFET is used

2.  Enhancement type JFET is used

3.  Depletion type MOSFET is used

4.  None of these

View Answer  
4
Correct Answer :

Enhancement type MOSFET is used


Explanation :
No Explanation available for this question
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