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Digital Electronics

Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 four
 two
 three
 one

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Digital Electronics
The number of cells in a 6 variable K-map is

 12
 36
 6
 64

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Digital Electronics
Which of the following gates is known as a coincidence detector?

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

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Digital Electronics
What is the radix of octal number system ?

 16
 2
 8
 10

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Digital Electronics
Which of the following is 1’s complement representation of +57

 11000110
 01000110
 00000001
 00111001

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 10
 6
 12
 9

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