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Byju's Answer
Standard XII
Physics
Logic Gates
NAND and NOR ...
Question
NAND and NOR gates are called universal gates primarily because they
A
are available universally
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B
can be combined to produce OR, AND and NOT gates
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C
are widely used in Integrated circuit packages
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D
are easiest to manufacture
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Solution
The correct option is
B
can be combined to produce OR, AND and NOT gates
Combination of NAND & NOR gates can produce OR, AND & NOT gates.
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NAND and NOR gates are called universal gates because they
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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.
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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.
(a) NAND gates are also called universal gate. Why?
(b) Draw a logic symbol of OR gate.
(c) Write the value of output
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in the given circuit:
(d) Write the name of the diode used in voltage regulation.
Q.
An AND gate can be prepared by repetitive use of
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(b) OR gate
(c) NAND gate
(d) NOR gate.