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Digital Electronics

Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NOR
 X-OR
 AND, OR, and NOT
 NAND

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

64
32
128
6

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NAND gate
 X-NOR gate
 X-OR gate
 NOR gate

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 X-NOR
 X-OR
 AND
 OR

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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
X OR X' will result

 1
 0
 X'
 X

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