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Digital Electronics

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

 y+xz
 x+yz
 x+xyz
 x+y

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Digital Electronics
X' AND X' will result

 0
 X
 1
 X power 2

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

 two
 one
 three
 four

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Digital Electronics
A debouncing circuit is

An astable MV
A latch
A monostable MV
A bistable MV

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1
 +(2n-1-1),-(2n-1-1)

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 08H
 50H
 42H
 48H

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