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Logic Gates

NAND and NOR ...

Question

NAND and NOR gates are called universal gates because they

A

are universally available.

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B

can be combined to produce OR, AND and NOT gates.

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C

are widely used in the integrated circuits.

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D

can be easily manufactured.

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Solution

The correct option is C can be combined to produce OR, AND and NOT gates.
The truth table for AND gate is as shown in the figure. Thus, the output of an AND gate is $1$ if and only if both inputs 'A' and 'B' are $1$ .

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Similar questions

Q. NAND and NOR gates are called universal gates primarily because they

Q. Using truth table of AND gate and NOT gate , show that NAND gate is an AND gate followed by a NOT gate. Hence write the truth table of NAND gate. Why are NAND gates called 'Universal Gates' ?

Q. Statement -1: NAND and NOR gates are called digital building blocks.
Statement-2: The repeated use of NAND (or NOR) gates can produce all the basis or complicated gates.

Q. (a) NAND gates are also called universal gate. Why?
(b) Draw a logic symbol of OR gate.
(c) Write the value of output

y

in the given circuit:
(d) Write the name of the diode used in voltage regulation.

Q. Assertion :NAND is a universal gate. Reason: It can be used to describe all other logic gates.

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