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Which of the following pairs are univers...

Which of the following pairs are universal gates

A

NAND,NOT

B

NAND,AND

C

NOR,OR

D

NAND,NOR

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The correct Answer is:
D
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ALLEN-SEMICONDUCTORS-Part-3(Exercise-1)
  1. Digital circuit can be made by repetitive use of

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

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  3. Which of the following pairs are universal gates

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

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  5. Modulation is not used to :-

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  6. Amplitude modulation is used for broad casting because

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

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

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  9. An 'antenna' is:

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  10. Long distance short-wave radio broadcasting uses

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

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  12. For television broadcasting, the frequency employed is normally

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

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

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  15. In an amplitude modulated wave for audio frequency of 500 "cycle"//sec...

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  16. If three wave no atmosphere, the average temperature on the surface of...

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

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  18. Which of the following is used to produce radio waves of constant ampl...

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  19. The maximum distance upto which TV transmission from a TV tower of...

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  20. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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