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Digital Electronics

Digital Electronics
Complement of XNOR and NOR is ________ and ________ respectively.

 OR, NOR
 XOR, NOR
 XOR, OR
 NOR, XNOR

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-(2n-1-1)
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1
 +(2n-1-1),-2n-1

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Digital Electronics
2's Complement of 10101011 is

 10101011
 00111100
 01010101
 10101100

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Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 AND
 NAND
 none of these
 OR

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

  D FF.
  T FF.
  S-R FF.
  J-K FF.

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I)&(IV)
 Both (II)&(III)
 Both (I) & (II)
 Only (II)

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