Question -
The combination of the following gates produces
Options:
A .  AND gate
B .  NAND gate
C .  NOR gate
D .  OR gate
Answer: Option A : A Output of first NAND gate is, Y′=¯¯¯¯¯¯¯¯¯¯¯A.B Output of second NAND gate is, Y=¯¯¯¯Y′=¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯A.B=A.B Thus AND gate is formed.
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