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Digital Electronics

Digital Electronics
A device which converts decimal number into BCD form is called

 decoder
 multiplexer
 encoder
 code converter

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 10011001
 11101110
 11111111
 10101010

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Digital Electronics
9’s complement of 52784630 is

 57316379
 48225469
 58326479
 47215369

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Digital Electronics
A switch-tail ring counter is made by using a single D-FF, the following circuit is

  S-R FF.
  D FF.
  T FF.
  J-K FF.

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Digital Electronics
A NAND gate is called a universal logic element because

All the minization techniques are applicable for optimum NAND gate realization
It is used by everybody
Many digital computers use NAND gates.
Any logic function can be realized by NAND gates alone

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Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 NOR
 none of these
 NAND
 AND

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