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प्रश्न
Give the truth table and circuit symbol for NAND gate
What is a NAND gate? Write its truth table.
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उत्तर १
The output is the inverted version of the output of AND gate. The symbol for NAND gate is given below
Truth table
| I | O | O/P |
| A | B | Y |
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
उत्तर २
NAND gate is the combination of AND gate and NOT gate i.e. NAND gate is nothing but it is AND gate with an inverted output.
The Logical statement of NAND gate is if input A is true and B is true then the output if false otherwise
true.
The Boolean equation of NAND gate is `Y = bar(A.B)`
| Input | Output | |
| A | B | `Y = bar(A.B)` |
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
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संबंधित प्रश्न
The following figure shows the input waveforms (A, B) and the output waveform (Y) of a gate. Identify the gate, write its truth table and draw its logic symbol.
You are given the two circuits as shown in following figure. Show that circuit
- acts as OR gate while the circuit
- acts as AND gate.
(a)
(b)
Write the truth table for the circuits given in following figure consisting of NOR gates only. Identify the logic operations (OR, AND, NOT) performed by the two circuits.
(a)
(b)
Let \[X = A \overline{ BC} + B\overline{ CA} + C\overline{AB } .\] Evaluate X for A = B = C = 1.
Design a logical circuit using AND, OR and NOT gates to evaluate \[A \overline { BC } + B \overline{ CA }\] .
Why are NOR gates considered as universal gates?
You are given circuit as shown in the figure, which consists of NAND gate. Identify the logic operation carried out by the two. Write the truth table. Identify the gates equivalent to the tow circuits.
NAND and NOR gates are called universal gates primarily because they ______.
Which one of the following is the Boolean expression for NOR gate?
The output (Y) of the given logic gate is similar to the output of an/a:
