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Digital Electronics

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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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 AND
 OR
 NOT
 NAND

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

 x+yz
 y+xz
 x+xyz
 x+y

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Digital Electronics
An AND gate can be imagined as

 transistors connected in series
 switches connected in parallel
 switches connected in series
 transistors connected in paralle

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

None of these
 the input is HIGH
 the input is LOW
 the input is HIGH and LOW

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Digital Electronics
The decimal equivalent of hexadecimal number “BEED” is

 48,877
 47,877
 48,777
 none

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