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प्रश्न
Why are NOR gates considered as universal gates?
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उत्तर १
Because they can be used to make any gates
उत्तर २
NOR gates are called universal gates because all the other gates like and, OR, NOT, XOR and XNOR can be derived from it.
These gates have the simplest circuit and all other "gates" can be obtained by an arrangement of NOR gates in an electrical circuit.
संबंधित प्रश्न
Write the truth table for the combination of the gates shown. Name the gates used.
The logic gate which produces LOW output when one of the input is HIGH and produces
HIGH output only when all of its inputs are LOW is called _______.
(A) AND gate
(B) OR gate
(C) NOR gate
(D) NAND gate
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 circuit given in figure below consisting of NOR gates and identify the logic operation (OR, AND, NOT) which this circuit is performing.
(Hint: A = 0, B = 1 then A and B inputs of second NOR gate will be 0 and hence Y=1. Similarly work out the values of Y for other combinations of A and B. Compare with the truth table of OR, AND, NOT gates and find the correct one.)
Answer the following question :
Distinguish between digital and analogue signals.
With the help of a diagram, show how you can use several NAND gates to obtain an OR gate.
Useful Constants and Relations :
| 1. Speed of Light in Vacuum | (c) = 3.00 x 108 m/s |
| 2. Charge of a proton | (e) = 1.60 x 10-19C |
| 3. Planck's Constant | (h) = 6.6 x 10-34 Js |
| 4. Permeability of vacuum | (μ0) = 4π x 10-7 Hm-1 |
| 5. Electron Volt | (1eV ) = 1.6 x 10 |
| 6. Unified Atomic Mass Unit | (1u) = 931 MeV |
| (π) = 3.14 | |
| ( ln 2 ) = 0.693 |
How would you set up a circuit to obtain NOT gate using a transistor?
Write the truth table for the circuit shown in figure. Name the gate that the circuit resembles.
A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of A, B and Y are shown below.
The logic gate circuit is ______.
The output (Y) of the given logic gate is similar to the output of an/a:
