In the combination of the following gates, the output \(Y\) can be written in terms of inputs \(A\) and \(B\) as:

    

1. \(\overline {A\cdot B}\) 2. \(A\cdot \overline{B}+ B\cdot \overline{A}\)
3. \(\overline {A\cdot B}+ A\cdot B\) 4. \(\overline {A+ B}\)
Subtopic:  Logic gates |
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In a \(\mathrm{p\text{-}n}\) junction diode, the change in temperature due to heating:

1. affects only reverse resistance.
2. affects only forward bias.
3. does not affect the resistance of the \(\mathrm{p\text{-}n}\) junction.
4. affects the overall \(\mathrm{V\text{-}I}\) characteristics of a \(\mathrm{p\text{-}n}\) junction.

Subtopic:  PN junction |
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Which one of the following represents forward biased circuit?

1. 

2. 

3. 

4. 

Subtopic:  PN junction |
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The given electrical network is equivalent to:
   

1. \(\text{OR}\) gate 2. \(\text{NOR}\) gate
3. \(\text{NOT}\) gate 4. \(\text{AND}\) gate
Subtopic:  Logic gates |
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Which one of the following represents the forward bias diode?

1.  
2.  
3.
4.
Subtopic:  PN junction |
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The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance R1 will be

   

(1) 2.5 A                     

(2) 10.0 A

(3) 1.43 A                   

(4) 3. 13 A

Subtopic:  Applications of PN junction |
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To get output 1 for the following circuit, the correct choice for the input is

                       

(1) A=1, B=0, C=0       

(2) A=1, B=1, C=0

(3) A=1, B=0, C=1       

(4) A=0, B=1, C=0

Subtopic:  Logic gates |
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The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance \(R_1\) will be:
   
1. \(2.5~\text{A}\)
2. \(10.0~\text{A}\)
3. \(1.43~\text{A}\)
4. \(3.13~\text{A}\)

Subtopic:  PN junction | Applications of PN junction |
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What is the output \(Y\) in the following circuit, when all the three inputs \(A\), \(B\), and \(C\) are first \(0\) and then \(1\)
                          

1. \(0,1\) 2. \(0,0\)
3. \(1,0\) 4. \(1,1\)

Subtopic:  Logic gates |
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To get output \(Y=1\) for the following circuit, the correct choice for the input is:
  

1. \(A=1,~ B= 0, ~C=0\)
2. \(A=1,~ B= 1, ~C=0\)
3. \(A=1,~ B= 0, ~C=1\)
4. \(A=0,~ B= 1, ~C=0\)

Subtopic:  Logic gates |
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