The common base configuration is useful when

1.  A high current gain is required

2.  A low output resistance is required

3.  A low input resistance is required

4.  A high voltage gain and low output resistance is required

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4
Correct Answer :

A low input resistance is required


Explanation :
No Explanation available for this question

The JFET circuit and it’s common-source drain characteristics are shown below, if VDD = 20V, VGG = -2.5V and ID = 3mA then the value of Rd is

1.  33.3kΩ

2.  3.3kΩ

3.  333kΩ

4.  None

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4
Correct Answer :

3.3kΩ


Explanation :
No Explanation available for this question

The Zener diode in the regulator circuit shown in the figure has a Zener voltage of 5.8V and a Zener knee current of 0.5 mA. The maximum load current drawn from this circuit ensuring proper functioning over the input voltage range between 20v and 30V is

1.  23.7 mA

2.  14.2 mA

3.   13.7 mA

4.  24.2 mA

View Answer  
4
Correct Answer :

23.7 mA


Explanation :
No Explanation available for this question

The order and type of the filter for the Op-amp circuit shown below is.

1.   1st order LPF

2.   2nd order LPF

3.  1st order HPF

4.  2nd order HPF

View Answer  
4
Correct Answer :

2nd order LPF


Explanation :
No Explanation available for this question

The circuit below shown is

1.  2nd order high pass filter

2.  2nd order low pass filter

3.  2nd order unity gain low pass filter

4.  2nd order unity gain high pass filter

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4
Correct Answer :

2nd order unity gain low pass filter


Explanation :
No Explanation available for this question

Consider the common emitter circuit shown below Which of the following represents the D.C. equivalent model of common emitter circuit shown above such that transistor is in active region

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

For the circuit shown below, assume that the Zener diode is ideal with a breakdown voltage of 6V. The waveform observed across R is

1.  

2.  

3.  

4.  None

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4
Correct Answer :


Explanation :
No Explanation available for this question

In the transformer- coupled amplifier circuit shown below, if the turns ratio of the transformers is 1:2 then impedance of the amplifier seen from the source given h-parameter of the transistor hie=2K hre=0, & hoe=0.A/V

1.   52 KΩ

2.  26 KΩ

3.  13 KΩ

4.  None

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4
Correct Answer :

26 KΩ


Explanation :
No Explanation available for this question

For the common emitter circuit shown below, if VCC = 10V, RC= 2KΩ, RB = 220 KΩ, VBB = 4V , β = 200 then VCE and region of operation is

1.  2V & cutoff

2.  4V & forward active

3.  6V & reverse active

4.  10V & cutoff

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4
Correct Answer :

4V & forward active


Explanation :
No Explanation available for this question

For the circuit shown below, which of the following option correctly represents the type and output equation

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
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