Fundamentholfundamenthol
JEE Main2026Jan 21, Shift 1Physics
Q.

The given circuit works as :

  1. A

    AND gate

  2. B

    NOR gate

  3. C

    NAND gate

  4. D

    OR gate

Solution

Trace through the circuit. The first two NOR gates have their inputs tied, so they act as inverters: , .

The third NOR gate: . By De Morgan's law this equals .

The final inverter gives , which is the NAND function.

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