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Digital Electronics

Digital Electronics
The time required for a gate to change its output is called as

 propagation time
 start time
 Decay time
 run time

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Digital Electronics
A boolean function can be transformed into logical ________.

 matrix
 diagram
 graph
 map

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Digital Electronics
In Boolean algebra A.A is equal to

 2A
 1
 A
 A²

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

 code decoder
 code encoder
 code converter
 coder

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Digital Electronics
The voltage levels for negative logic system

 must necessarily be positive
 may be negative or positive
 must necessarily be negative
 must necessarily be 0 V and –5 V

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Digital Electronics
Truth table is used to express

 Boolean addition
 Boolean map
 Boolean matrix
 Boolean expression

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