Q.

Consider the circuit of logic gates shown in the above figure. This combination of logic gates can be replaced by which logic gate?

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a

OR

b

NAND

c

AND

d

NOR

answer is C.

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Detailed Solution

The boolean expression of this arrangement is,For NOT gate,Y1=A¯ and Y2=B¯For NOR gate,Y=A¯¯+B¯=A¯¯⋅B¯¯Y=A⋅BTruth TableThus, the combination represents AND gate.
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