NAND Gate from NOR Gates – Rankers Physics
Topic: Semiconductor Physics
Subtopic: Logic Gates

NAND Gate from NOR Gates

Assertion (A): A NAND gate can be obtained by using NOR gates.
Reason (R): NOR, NAND and XOR gates are called universal gates.
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

NAND and NOR gates are universal gates, meaning any other logic gate (including NAND) can be constructed using only NOR gates. Hence, Assertion (A) is true. However, while NAND and NOR are universal gates, XOR is not. Therefore, Reason (R) is false.

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