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GATE 2022: Digital Logic Quiz- 5

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Question 1

For the circuit shown in figure the Boolean expression for the output Y in terms of inputs p, Q, R and S is

Question 2

The Boolean fubction f implemented in the figure using two input multiplexers is

Question 3

Minimum number of 2-input NAND gates required to implement the function,
F= is

Question 4

The Boolean function is realized by the logic circuit shown is.

Question 5

Consider a combinational circuit that converts BCD number to its 9's complement in BCD format only. Let the number of don’t care conditions in this circuit be x and the number of outputs that are negative be y. Then find the value of x - y is _________.

Question 6

Consider the following circuit:

BCD.jpg

The above circuit counts from 0 to ____.

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Sep 17GATE & PSU CS