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

1. $\overline{\mathrm{A}.\mathrm{B}}$

2. $\mathrm{A}.\overline{\mathrm{B}}+\mathrm{B}.\overline{\mathrm{A}}$

3. $\overline{\mathrm{A}.\mathrm{B}}+\mathrm{A}.\mathrm{B}$

4. $\overline{\mathrm{A}+\mathrm{B}}$

In a p-n junction diode, the change in temperature due to heating:

Which one of the following represents forward biased circuit?

1. 

2. 

3. 

4. 

The given electrical network is equivalent to:
 
1. OR gate

2. NOR gate

3. NOT gate

4. AND gate

Which one of the following represents the forward bias diode?

1.
2.
3.
4.

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 A                     

(2) 10.0 A

(3) 1.43 A                   

(4) 3. 13 A

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) $A=0, B=1, C=0$

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

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

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