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Digital Electronics

Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 (n + n)-bit
 (n + 2)-bit
 n-bit
 (n + 1)-bit

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:1
 2:3
 1:2
 2:1

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Digital Electronics
The NOR-NOR realization is equivalent to

 AND-OR realization
 OR-AND realization
 NOT-AND realization
 OR-NOT realization

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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?

 OR
 X-NOR
 AND
 X-OR

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 y+xz
 x+xyz
 x+y
 x+yz

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Digital Electronics
Which number system has a base of 16

 Decimal
 Hexadecimal
 Octal
 None

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