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Digital Electronics

Digital Electronics
X + X.Y = ?

 X
 Y
 0
 1

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Digital Electronics
A combinational circuit can be designed using only

 OR and X-NOR gates
 NOR gates
 AND gates
 OR gates

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Digital Electronics
Which of these circuits have higher gate complexity 1. Carry look ahead adder 2. Ripple carry adder

 none
 2
 both have same
 1

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 input
 output
 triggering
 clearing

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Digital Electronics
A NAND gate is called a universal logic element because

All the minization techniques are applicable for optimum NAND gate realization
It is used by everybody
Many digital computers use NAND gates.
Any logic function can be realized by NAND gates alone

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Digital Electronics
How many input and output required for multiplexer ?

None of these
 Many input and one output
 One input and many output
 One input and one output

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