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Digital Electronics

Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m+1
 2m-1
 2m-1
 2m

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Digital Electronics
The 2s complement of 17 is

 101110.
 110001.
 111110.
  101111.

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Digital Electronics
Which one of the following is correct sequence of the numbers represented in the series(2)3, (10)4, (11)5, (14)6, (22)7,…………….

 2, 4, 6, 10, 12, …
 2, 4, 6, 10, 16……..
 2, 4, 6, 8, 10, …..
 2, 3, 4, 5, 6, ….

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Digital Electronics
What will be the Boolean expression for an inverter logic gate, where input is A and output is G ?

 G = Ā
None of these
 A= G
 G = A

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Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 9
 6
 8
 7

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Digital Electronics
Excess-3 code is known as

Cyclic redundancy code
Algebraic code
Weighted code
Self-complementing code

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