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Identify the logic operation performed by the given circuit [Figure: A and B each go into a NOR gate with tied inputs; the outputs feed a NOR gate giving Y.]
Asked in JEE Main 25th June 2nd Shift 2022 · Gate combinations and truth tables
- (1) AND gate
- (2) OR gate
- (3) NOR gate
- (4) NAND gate
Answer: (1) AND gate
Step-by-step solution
Tied NORs give A and B.
Y=A+B=AB: AND.
Why the other options are wrong
- (2) Ignores the input inverters.
- (3) Ignores the input inverters.
- (4) Missing one inversion.
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