When a transistor is used as a switch it is in:

1.  Active state

2.  Cut off state

3.  Saturation state

4.  Both cut off state and saturation state are possible

The current through an ideal p-n junction diode shown in the circuit will be:

1.  5 A
2.  0.2 A 
3.  0.6 A
4.  zero

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1.  36 mW

2.  12 mW

3.  144 mW

4.  64 mW

If a small amount of aluminium is added to the silicon crystal:

Three ideal diodes are connected to the battery as shown in the circuit. The current supplied by the battery is:

                         
1. zero
2. \(4~\text{A}\)
3. \(2~\text{A}\)
4. \(6~\text{A}\)

The following configuration of the logic gate is equivalent to

1.  NAND gate

2.  XOR gate

3.  OR gate

4.  NOR gate

The given electrical network is equivalent to 

1. AND gate 

2. OR gate

3. NOR gate

4. NOT gate 

Which one of the following represents forward biased circuit?

1. 

2. 

3. 

4. 

What is the output Y in the following circuit, when all the three inputs A,B,C are first 0 and then 1 ?

1. 0,1

2. 0,0 

3. 1,0

4. 1,1