Electronic DevicesLogic Gates (Or, and, NOT, NAND and NOR) (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 9  13 of 17
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Question number: 9
» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)
Assertion (Ꭺ)
The following circuit represents ‘OR’ gate
Reason (Ꭱ)
For the above circuit
Choices
Choice (4)  Response  

a.  Ꭺ is false but Ꭱ is true 

b.  Both Ꭺ and Ꭱ are false 

c.  Ꭺ is true but Ꭱ is false 

d.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

Question number: 10
» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)
Question
Figure gives a system of logic gates. From the study of truth table it can be found that to produce a high output (1) at R, we must have
Choices
Choice (4)  Response  

a.  X = 1, Y = 1 

b.  X = 0, Y = 1 

c.  X = 0, Y = 0 

d.  X = 1, Y = 0 

Question number: 11
» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)
Question
The following truth table corresponds to the logic gate
A  B  X 
0  0  0 
0  1  1 
1  0  1 
1  1  1 
Choices
Choice (4)  Response  

a.  OR 

b.  XOR 

c.  NAND 

d.  AND 

Question number: 12
» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)
Question
In the case of a common emitter transistor as/an amplifier, the ratio is 0.96, then the current gain (β) of the amplifier,
Choices
Choice (4)  Response  

a.  6 

b.  48 

c.  12 

d.  24 

Question number: 13
» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)
Question
The truthtable given below is for which ate?
A  B  C 
0  0  1 
0  1  1 
1  0  1 
1  1  0 
Choices
Choice (4)  Response  

a.  AND 

b.  NAND 

c.  OR. 

d.  XOR 
