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In Boolean algebra, which of the followi...

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

A

`A.bar(A)`

B

A.0

C

`bar(A+bar(A))`

D

`bar(bar(A).0)`

Text Solution

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The correct Answer is:
D
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ALLEN -SEMICONDUCTORS-Part-3(Exercise-1)
  1. The output of gate is low when at least one of its input is high. This...

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  2. An XOR gate produces an output only when its two inputs are :-

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

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  4. Digital circuit can be made by repetitive use of

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

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  6. Which of the following pairs are universal gates

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  7. The output of a two input NOR gate is in state 1 when :-

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  8. Modulation is not used to :-

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  9. Amplitude modulation is used for broad casting because

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  10. Frequencies in the UHF range normally propagate by means of

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  11. Digital signals (i) do not provide a continuous set of values. (ii...

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  12. An 'antenna' is:

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  13. Long distance short-wave radio broadcasting uses

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  14. The power in a two-wire transmission line travels :-

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  15. For television broadcasting, the frequency employed is normally

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  16. The sound waves after being converted into electrical waves are not tr...

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  17. The process of superimposing signal frequency (i.e. audio wave) on the...

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  18. In an amplitude modulated wave for audio-frequency of 500Hz, the appro...

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  19. If there were no atmosphere, the average temperature on the surface of...

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  20. The T.V. transmission tower in Delhi has a height of 240 m. The distan...

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