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प्रश्न
The output of NOR gate is high, when _______.
विकल्प
all inputs are high
all inputs are low
only one of its inputs is high
only one of its inputs is low
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उत्तर
all inputs are low
APPEARS IN
संबंधित प्रश्न
Identify the logic gates marked 'P' and 'Q' in the given circuit. Write the truth table for the combination.

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
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.)
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)

Draw the schematic symbols for AND, OR, NOT and NAND gate
Give the truth table and circuit symbol for NAND gate
The arrangement given below represents a logic gate :

Copy the following truth table in your answer booklet and complete it showing outputs at C
and D.
| A | B | C | D |
| 0 | 0 | ||
| 1 | 0 | ||
| 0 | 1 | ||
| 1 | 0 |
Answer the following question :
Distinguish between digital and analogue signals.
You are given a circuit below. Write its truth table. Hence, identify the logic operation carried out by this circuit. Draw the logic symbol of the gate it corresponds to.

Name the logic gate which generated high output when at least one input is high.
An AND gate can be prepared by repetitive use of
(a) NOT gate
(b) OR gate
(c) NAND gate
(d) NOR gate.
The amplification factor of a triode operating in the linear region depends strongly on ____________ .
(i) Write the truth tables of the logic gates marked P and Q in the given circuit.
(ii) Write the truth table for the circuit.

Show the variation of voltage with time, for a digital signal.
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 ______.
An oscillator is nothing but an amplifier with
In potential barrier development in a junction diode opposes
A CE amplifier has a voltage gain 50, an input impedance of 1000 ohm 1 and an output impedance of 200 ohm. The power gain of the amplifier will be
The truth table for the following logic circuit is:

Truth table for the given circuit (Figure) is ______.

How would you set up a circuit to obtain NOT gate using a transistor?
The given figure shows the waveforms for two inputs A and B and that for the output Y of a logic circuit. The logic circuit is ______.
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 ______.
Which of the following gives a reversible operation?
The output (Y) of the given logic implementation is similar to the output of an/a ______ gate.

