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Digital Electronics

Digital Electronics
A + Ā is equal to

 1
 A
 Ā
 0

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output follows clock
 the output follow input
 the output is LOW
 the output is HIGH

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Digital Electronics
In a T flip-flop no of input circuit is

 3
 4
 1
 2

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 n – m literals
 n + m literals
 m + 1 literals less than the total number of variables
 m – 1 literals less than the total number of variables

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -7, -7 and -7 respectively
 -6, -6 and -6 respectively
 25, 9 and 57 respectively
 -25, -9 and -57 respectively

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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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