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Which of the following Boolean expressio...

Which of the following Boolean expression is not correct :-

A

`bar(bar(A).bar(B)) = A + B`

B

`bar(bar(A) + bar(B)) = A.B`

C

`bar(bar(A.B))=A.B`

D

`bar(1) + bar(1) = 1`

Text Solution

Verified by Experts

The correct Answer is:
D
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MOTION-LOGIC GATES-EXERCISE - 1
  1. Which of the following Boolean expression is not correct :-

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  2. In Boolean algebra, which of the following is not equal to zero :-

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  3. Digital circuit can be made by repetitive use of

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  4. Which of the following relation is valid in Boolean algebra :-

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  5. Which of the following relations is valid for Boolean algebra :-

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  6. What would be the output of the circuit whose Boolean expression Y = A...

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  7. Which of the following relations is valid for Boolean algebra :-

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  8. The output of the given logic gate is 1 when inputs A,B and C are such...

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  9. The truth table given below is for :- {:(A,B,Y),(0,0,1),(0,1,0),(1,0...

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  10. The arrangement shown in figure performs the logic function of a/an….g...

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  11. The output of gate is low when at least one of its input is high. This...

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  12. A two inputed XOR gate produces an output high only when its both inpu...

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  13. You are given two circuits as shown in following figure. The logic ope...

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  14. In Boolean algebra A + B = Y implies that :

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  15. Given below are four logic tage symboles. Those for OR, NOR and NAND a...

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  16. The truth table shown below is for which of the following gates :- {...

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  17. When all the inputs of a NAND gate are connected together, the resulti...

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  18. Which of the following pairs are universal gates

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  19. A NAND gate followed by a NOT gate is :-

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  20. The NOR gate is logically equivalent to an OR gate followed by :-

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