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Digital Electronics

Digital Electronics
How many entries will be in the truth table of a 3 input NAND gate ?

 3
 6
 9
 8

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Digital Electronics
The most suitable gate for comparing two bits is

 NAND
 X-OR
 AND
 OR

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Digital Electronics
The XS-3 code is a

 error-correcting code
 weighted code
 self-complementing code
 cyclic code

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code encoder
 code decoder
 code converter
 coder

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Digital Electronics
Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate
NAND gate
NOT gate
OR gate

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n-1
22n
2n

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