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Digital Electronics

Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 0 and 4
 1 and 3
 0 and 3
 1 and 4

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Digital Electronics
An any or all gate is the other name of

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

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Digital Electronics
Which of the following codes is known as the 8421 code?

 ASCII code
 XS-3 code
 BCD code
 Gray code

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Digital Electronics
Logic circuits are

 hybrid circuits
 analog circuits
 digital circuits
 none of these

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Digital Electronics
How many stable state/states present in flip-flop ?

 3
 2
 1
 4

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

 run time
 start time
 Decay time
 propagation time

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