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Digital Electronics

Digital Electronics
A + Ā is equal to

 1
 0
 Ā
 A

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

 both have same
 1
 2
 none

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 3
 2
 4
 1

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Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 11000100
 01111100
 00111100

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Digital Electronics
Which of the following is equivalant to an ODD function

 NOR
 XOR
 AND-NOR
 XNOR

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Digital Electronics
Which of the following is a digital device

 Microphone
 Light switch
 Resistance of a material
 Regulator of a fan

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